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Message-ID: <20240411233624.8129-16-fw@strlen.de>
Date: Fri, 12 Apr 2024 01:36:20 +0200
From: Florian Westphal <fw@...len.de>
To: <netdev@...r.kernel.org>
Cc: <netfilter-devel@...r.kernel.org>,
Paolo Abeni <pabeni@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Pablo Neira Ayuso <pablo@...filter.org>
Subject: [PATCH net-next 15/15] selftests: netfilter: nft_nat.sh: move to lib.sh infra
Use busywait helper to wait until socat listener is up to avoid "sleep" calls.
This reduces script execution time slighty (12s to 7s).
Signed-off-by: Florian Westphal <fw@...len.de>
---
.../selftests/net/netfilter/nft_nat.sh | 480 ++++++++----------
1 file changed, 206 insertions(+), 274 deletions(-)
diff --git a/tools/testing/selftests/net/netfilter/nft_nat.sh b/tools/testing/selftests/net/netfilter/nft_nat.sh
index dd40d9f6f259..9e39de26455f 100755
--- a/tools/testing/selftests/net/netfilter/nft_nat.sh
+++ b/tools/testing/selftests/net/netfilter/nft_nat.sh
@@ -3,77 +3,60 @@
# This test is for basic NAT functionality: snat, dnat, redirect, masquerade.
#
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
+source lib.sh
+
ret=0
test_inet_nat=true
-sfx=$(mktemp -u "XXXXXXXX")
-ns0="ns0-$sfx"
-ns1="ns1-$sfx"
-ns2="ns2-$sfx"
+checktool "nft --version" "run test without nft tool"
+checktool "socat -h" "run test without socat"
cleanup()
{
- for i in 0 1 2; do ip netns del ns$i-"$sfx";done
-}
+ ip netns pids "$ns0" | xargs kill 2>/dev/null
+ ip netns pids "$ns1" | xargs kill 2>/dev/null
+ ip netns pids "$ns2" | xargs kill 2>/dev/null
-nft --version > /dev/null 2>&1
-if [ $? -ne 0 ];then
- echo "SKIP: Could not run test without nft tool"
- exit $ksft_skip
-fi
-
-ip -Version > /dev/null 2>&1
-if [ $? -ne 0 ];then
- echo "SKIP: Could not run test without ip tool"
- exit $ksft_skip
-fi
+ rm -f "$INFILE" "$OUTFILE"
-ip netns add "$ns0"
-if [ $? -ne 0 ];then
- echo "SKIP: Could not create net namespace $ns0"
- exit $ksft_skip
-fi
+ cleanup_all_ns
+}
trap cleanup EXIT
-ip netns add "$ns1"
-if [ $? -ne 0 ];then
- echo "SKIP: Could not create net namespace $ns1"
- exit $ksft_skip
-fi
+INFILE=$(mktemp)
+OUTFILE=$(mktemp)
-ip netns add "$ns2"
-if [ $? -ne 0 ];then
- echo "SKIP: Could not create net namespace $ns2"
- exit $ksft_skip
-fi
+setup_ns ns0 ns1 ns2
-ip link add veth0 netns "$ns0" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1
-if [ $? -ne 0 ];then
+if ! ip link add veth0 netns "$ns0" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1;then
echo "SKIP: No virtual ethernet pair device support in kernel"
exit $ksft_skip
fi
ip link add veth1 netns "$ns0" type veth peer name eth0 netns "$ns2"
-ip -net "$ns0" link set lo up
ip -net "$ns0" link set veth0 up
ip -net "$ns0" addr add 10.0.1.1/24 dev veth0
-ip -net "$ns0" addr add dead:1::1/64 dev veth0
+ip -net "$ns0" addr add dead:1::1/64 dev veth0 nodad
ip -net "$ns0" link set veth1 up
ip -net "$ns0" addr add 10.0.2.1/24 dev veth1
-ip -net "$ns0" addr add dead:2::1/64 dev veth1
-
-for i in 1 2; do
- ip -net ns$i-$sfx link set lo up
- ip -net ns$i-$sfx link set eth0 up
- ip -net ns$i-$sfx addr add 10.0.$i.99/24 dev eth0
- ip -net ns$i-$sfx route add default via 10.0.$i.1
- ip -net ns$i-$sfx addr add dead:$i::99/64 dev eth0
- ip -net ns$i-$sfx route add default via dead:$i::1
-done
+ip -net "$ns0" addr add dead:2::1/64 dev veth1 nodad
+
+do_config()
+{
+ ns="$1"
+ subnet="$2"
+
+ ip -net "$ns" link set eth0 up
+ ip -net "$ns" addr add "10.0.$subnet.99/24" dev eth0
+ ip -net "$ns" route add default via "10.0.$subnet.1"
+ ip -net "$ns" addr add "dead:$subnet::99/64" dev eth0 nodad
+ ip -net "$ns" route add default via "dead:$subnet::1"
+}
+
+do_config "$ns1" 1
+do_config "$ns2" 2
bad_counter()
{
@@ -83,7 +66,7 @@ bad_counter()
local tag=$4
echo "ERROR: $counter counter in $ns has unexpected value (expected $expect) at $tag" 1>&2
- ip netns exec $ns nft list counter inet filter $counter 1>&2
+ ip netns exec "$ns" nft list counter inet filter "$counter" 1>&2
}
check_counters()
@@ -91,26 +74,23 @@ check_counters()
ns=$1
local lret=0
- cnt=$(ip netns exec $ns nft list counter inet filter ns0in | grep -q "packets 1 bytes 84")
- if [ $? -ne 0 ]; then
- bad_counter $ns ns0in "packets 1 bytes 84" "check_counters 1"
+ if ! ip netns exec "$ns" nft list counter inet filter ns0in | grep -q "packets 1 bytes 84";then
+ bad_counter "$ns" ns0in "packets 1 bytes 84" "check_counters 1"
lret=1
fi
- cnt=$(ip netns exec $ns nft list counter inet filter ns0out | grep -q "packets 1 bytes 84")
- if [ $? -ne 0 ]; then
- bad_counter $ns ns0out "packets 1 bytes 84" "check_counters 2"
+
+ if ! ip netns exec "$ns" nft list counter inet filter ns0out | grep -q "packets 1 bytes 84";then
+ bad_counter "$ns" ns0out "packets 1 bytes 84" "check_counters 2"
lret=1
fi
expect="packets 1 bytes 104"
- cnt=$(ip netns exec $ns nft list counter inet filter ns0in6 | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter $ns ns0in6 "$expect" "check_counters 3"
+ if ! ip netns exec "$ns" nft list counter inet filter ns0in6 | grep -q "$expect";then
+ bad_counter "$ns" ns0in6 "$expect" "check_counters 3"
lret=1
fi
- cnt=$(ip netns exec $ns nft list counter inet filter ns0out6 | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter $ns ns0out6 "$expect" "check_counters 4"
+ if ! ip netns exec "$ns" nft list counter inet filter ns0out6 | grep -q "$expect";then
+ bad_counter "$ns" ns0out6 "$expect" "check_counters 4"
lret=1
fi
@@ -122,41 +102,35 @@ check_ns0_counters()
local ns=$1
local lret=0
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0in | grep -q "packets 0 bytes 0")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter ns0in | grep -q "packets 0 bytes 0";then
bad_counter "$ns0" ns0in "packets 0 bytes 0" "check_ns0_counters 1"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0in6 | grep -q "packets 0 bytes 0")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter ns0in6 | grep -q "packets 0 bytes 0";then
bad_counter "$ns0" ns0in6 "packets 0 bytes 0"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0out | grep -q "packets 0 bytes 0")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter ns0out | grep -q "packets 0 bytes 0";then
bad_counter "$ns0" ns0out "packets 0 bytes 0" "check_ns0_counters 2"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns0out6 | grep -q "packets 0 bytes 0")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter ns0out6 | grep -q "packets 0 bytes 0";then
bad_counter "$ns0" ns0out6 "packets 0 bytes 0" "check_ns0_counters3 "
lret=1
fi
for dir in "in" "out" ; do
expect="packets 1 bytes 84"
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ${ns}${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" $ns$dir "$expect" "check_ns0_counters 4"
+ if ! ip netns exec "$ns0" nft list counter inet filter "${ns}${dir}" | grep -q "$expect";then
+ bad_counter "$ns0" "$ns${dir}" "$expect" "check_ns0_counters 4"
lret=1
fi
expect="packets 1 bytes 104"
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ${ns}${dir}6 | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" $ns$dir6 "$expect" "check_ns0_counters 5"
+ if ! ip netns exec "$ns0" nft list counter inet filter "${ns}${dir}6" | grep -q "$expect";then
+ bad_counter "$ns0" "$ns${dir}6" "$expect" "check_ns0_counters 5"
lret=1
fi
done
@@ -166,8 +140,8 @@ check_ns0_counters()
reset_counters()
{
- for i in 0 1 2;do
- ip netns exec ns$i-$sfx nft reset counters inet > /dev/null
+ for i in "$ns0" "$ns1" "$ns2" ;do
+ ip netns exec "$i" nft reset counters inet > /dev/null
done
}
@@ -177,7 +151,7 @@ test_local_dnat6()
local lret=0
local IPF=""
- if [ $family = "inet" ];then
+ if [ "$family" = "inet" ];then
IPF="ip6"
fi
@@ -195,8 +169,7 @@ EOF
fi
# ping netns1, expect rewrite to netns2
- ip netns exec "$ns0" ping -q -c 1 dead:1::99 > /dev/null
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" ping -q -c 1 dead:1::99 > /dev/null;then
lret=1
echo "ERROR: ping6 failed"
return $lret
@@ -204,8 +177,7 @@ EOF
expect="packets 0 bytes 0"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
bad_counter "$ns0" ns1$dir "$expect" "test_local_dnat6 1"
lret=1
fi
@@ -213,8 +185,7 @@ EOF
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat6 2"
lret=1
fi
@@ -223,8 +194,7 @@ EOF
# expect 0 count in ns1
expect="packets 0 bytes 0"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_local_dnat6 3"
lret=1
fi
@@ -233,8 +203,7 @@ EOF
# expect 1 packet in ns2
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat6 4"
lret=1
fi
@@ -252,7 +221,7 @@ test_local_dnat()
local lret=0
local IPF=""
- if [ $family = "inet" ];then
+ if [ "$family" = "inet" ];then
IPF="ip"
fi
@@ -265,7 +234,7 @@ table $family nat {
}
EOF
if [ $? -ne 0 ]; then
- if [ $family = "inet" ];then
+ if [ "$family" = "inet" ];then
echo "SKIP: inet nat tests"
test_inet_nat=false
return $ksft_skip
@@ -275,8 +244,7 @@ EOF
fi
# ping netns1, expect rewrite to netns2
- ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null;then
lret=1
echo "ERROR: ping failed"
return $lret
@@ -284,18 +252,16 @@ EOF
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" ns1$dir "$expect" "test_local_dnat 1"
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns0" "ns1$dir" "$expect" "test_local_dnat 1"
lret=1
fi
done
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat 2"
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+ bad_counter "$ns0" "ns2$dir" "$expect" "test_local_dnat 2"
lret=1
fi
done
@@ -303,9 +269,8 @@ EOF
# expect 0 count in ns1
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" ns0$dir "$expect" "test_local_dnat 3"
+ if ! ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect";then
+ bad_counter "$ns1" "ns0$dir" "$expect" "test_local_dnat 3"
lret=1
fi
done
@@ -313,20 +278,18 @@ EOF
# expect 1 packet in ns2
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat 4"
+ if ! ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect";then
+ bad_counter "$ns2" "ns0$dir" "$expect" "test_local_dnat 4"
lret=1
fi
done
test $lret -eq 0 && echo "PASS: ping to $ns1 was $family NATted to $ns2"
- ip netns exec "$ns0" nft flush chain $family nat output
+ ip netns exec "$ns0" nft flush chain "$family" nat output
reset_counters
- ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null;then
lret=1
echo "ERROR: ping failed"
return $lret
@@ -334,16 +297,14 @@ EOF
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns1$dir "$expect" "test_local_dnat 5"
lret=1
fi
done
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat 6"
lret=1
fi
@@ -352,8 +313,7 @@ EOF
# expect 1 count in ns1
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
bad_counter "$ns0" ns0$dir "$expect" "test_local_dnat 7"
lret=1
fi
@@ -362,8 +322,7 @@ EOF
# expect 0 packet in ns2
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat 8"
lret=1
fi
@@ -374,13 +333,19 @@ EOF
return $lret
}
+listener_ready()
+{
+ local ns="$1"
+ local port="$2"
+ local proto="$3"
+ ss -N "$ns" -ln "$proto" -o "sport = :$port" | grep -q "$port"
+}
+
test_local_dnat_portonly()
{
local family=$1
local daddr=$2
local lret=0
- local sr_s
- local sr_r
ip netns exec "$ns0" nft -f /dev/stdin <<EOF
table $family nat {
@@ -392,7 +357,7 @@ table $family nat {
}
EOF
if [ $? -ne 0 ]; then
- if [ $family = "inet" ];then
+ if [ "$family" = "inet" ];then
echo "SKIP: inet port test"
test_inet_nat=false
return
@@ -401,17 +366,16 @@ EOF
return
fi
- echo SERVER-$family | ip netns exec "$ns1" timeout 5 socat -u STDIN TCP-LISTEN:2000 &
- sc_s=$!
+ echo "SERVER-$family" | ip netns exec "$ns1" timeout 3 socat -u STDIN TCP-LISTEN:2000 &
- sleep 1
+ busywait $BUSYWAIT_TIMEOUT listener_ready "$ns1" 2000 "-t"
- result=$(ip netns exec "$ns0" timeout 1 socat TCP:$daddr:2000 STDOUT)
+ result=$(ip netns exec "$ns0" timeout 1 socat -u TCP:"$daddr":2000 STDOUT)
if [ "$result" = "SERVER-inet" ];then
echo "PASS: inet port rewrite without l3 address"
else
- echo "ERROR: inet port rewrite"
+ echo "ERROR: inet port rewrite without l3 address, got $result"
ret=1
fi
}
@@ -424,24 +388,20 @@ test_masquerade6()
ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
- ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 via ipv6"
return 1
- lret=1
fi
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" ns2$dir "$expect" "test_masquerade6 1"
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+ bad_counter "$ns1" "ns2$dir" "$expect" "test_masquerade6 1"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns2" ns1$dir "$expect" "test_masquerade6 2"
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade6 2"
lret=1
fi
done
@@ -462,8 +422,7 @@ EOF
return $ksft_skip
fi
- ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
lret=1
fi
@@ -471,14 +430,12 @@ EOF
# ns1 should have seen packets from ns0, due to masquerade
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 3"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
bad_counter "$ns2" ns1$dir "$expect" "test_masquerade6 4"
lret=1
fi
@@ -487,27 +444,23 @@ EOF
# ns1 should not have seen packets from ns2, due to masquerade
expect="packets 0 bytes 0"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 5"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" ns1$dir "$expect" "test_masquerade6 6"
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns0" "ns1$dir" "$expect" "test_masquerade6 6"
lret=1
fi
done
- ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 with active ipv6 masquerade $natflags (attempt 2)"
lret=1
fi
- ip netns exec "$ns0" nft flush chain $family nat postrouting
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft flush chain "$family" nat postrouting;then
echo "ERROR: Could not flush $family nat postrouting" 1>&2
lret=1
fi
@@ -526,23 +479,20 @@ test_masquerade()
ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
- echo "ERROR: cannot ping $ns1 from "$ns2" $natflags"
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+ echo "ERROR: cannot ping $ns1 from $ns2 $natflags"
lret=1
fi
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" ns2$dir "$expect" "test_masquerade 1"
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+ bad_counter "$ns1" "ns2$dir" "$expect" "test_masquerade 1"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns2" ns1$dir "$expect" "test_masquerade 2"
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade 2"
lret=1
fi
done
@@ -563,8 +513,7 @@ EOF
return $ksft_skip
fi
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
lret=1
fi
@@ -572,15 +521,13 @@ EOF
# ns1 should have seen packets from ns0, due to masquerade
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" ns0$dir "$expect" "test_masquerade 3"
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+ bad_counter "$ns1" "ns0$dir" "$expect" "test_masquerade 3"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns2" ns1$dir "$expect" "test_masquerade 4"
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade 4"
lret=1
fi
done
@@ -588,27 +535,23 @@ EOF
# ns1 should not have seen packets from ns2, due to masquerade
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" ns0$dir "$expect" "test_masquerade 5"
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+ bad_counter "$ns1" "ns0$dir" "$expect" "test_masquerade 5"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns0" ns1$dir "$expect" "test_masquerade 6"
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+ bad_counter "$ns0" "ns1$dir" "$expect" "test_masquerade 6"
lret=1
fi
done
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 with active ip masquerade $natflags (attempt 2)"
lret=1
fi
- ip netns exec "$ns0" nft flush chain $family nat postrouting
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft flush chain "$family" nat postrouting; then
echo "ERROR: Could not flush $family nat postrouting" 1>&2
lret=1
fi
@@ -625,22 +568,19 @@ test_redirect6()
ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
- ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
echo "ERROR: cannnot ping $ns1 from $ns2 via ipv6"
lret=1
fi
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns2$dir "$expect" "test_redirect6 1"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
bad_counter "$ns2" ns1$dir "$expect" "test_redirect6 2"
lret=1
fi
@@ -662,8 +602,7 @@ EOF
return $ksft_skip
fi
- ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 via ipv6 with active $family redirect"
lret=1
fi
@@ -671,8 +610,7 @@ EOF
# ns1 should have seen no packets from ns2, due to redirection
expect="packets 0 bytes 0"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 3"
lret=1
fi
@@ -681,15 +619,13 @@ EOF
# ns0 should have seen packets from ns2, due to masquerade
expect="packets 1 bytes 104"
for dir in "in6" "out6" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 4"
lret=1
fi
done
- ip netns exec "$ns0" nft delete table $family nat
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft delete table "$family" nat;then
echo "ERROR: Could not delete $family nat table" 1>&2
lret=1
fi
@@ -707,22 +643,19 @@ test_redirect()
ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2"
lret=1
fi
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
- bad_counter "$ns1" $ns2$dir "$expect" "test_redirect 1"
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+ bad_counter "$ns1" "$ns2$dir" "$expect" "test_redirect 1"
lret=1
fi
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect";then
bad_counter "$ns2" ns1$dir "$expect" "test_redirect 2"
lret=1
fi
@@ -744,8 +677,7 @@ EOF
return $ksft_skip
fi
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 with active $family ip redirect"
lret=1
fi
@@ -754,8 +686,7 @@ EOF
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_redirect 3"
lret=1
fi
@@ -764,15 +695,13 @@ EOF
# ns0 should have seen packets from ns2, due to masquerade
expect="packets 1 bytes 84"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
bad_counter "$ns0" ns0$dir "$expect" "test_redirect 4"
lret=1
fi
done
- ip netns exec "$ns0" nft delete table $family nat
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft delete table "$family" nat;then
echo "ERROR: Could not delete $family nat table" 1>&2
lret=1
fi
@@ -803,13 +732,13 @@ test_port_shadow()
# make shadow entry, from client (ns2), going to (ns1), port 41404, sport 1405.
echo "fake-entry" | ip netns exec "$ns2" timeout 1 socat -u STDIN UDP:"$daddrc":41404,sourceport=1405
- echo ROUTER | ip netns exec "$ns0" timeout 5 socat -u STDIN UDP4-LISTEN:1405 &
- sc_r=$!
+ echo ROUTER | ip netns exec "$ns0" timeout 3 socat -T 3 -u STDIN UDP4-LISTEN:1405 2>/dev/null &
+ local sc_r=$!
+ echo CLIENT | ip netns exec "$ns2" timeout 3 socat -T 3 -u STDIN UDP4-LISTEN:1405,reuseport 2>/dev/null &
+ local sc_c=$!
- echo CLIENT | ip netns exec "$ns2" timeout 5 socat -u STDIN UDP4-LISTEN:1405,reuseport &
- sc_c=$!
-
- sleep 0.3
+ busywait $BUSYWAIT_TIMEOUT listener_ready "$ns0" 1405 "-u"
+ busywait $BUSYWAIT_TIMEOUT listener_ready "$ns2" 1405 "-u"
# ns1 tries to connect to ns0:1405. With default settings this should connect
# to client, it matches the conntrack entry created above.
@@ -846,7 +775,7 @@ table $family filter {
EOF
test_port_shadow "port-filter" "ROUTER"
- ip netns exec "$ns0" nft delete table $family filter
+ ip netns exec "$ns0" nft delete table "$family" filter
}
# This prevents port shadow of router service via notrack.
@@ -868,7 +797,7 @@ table $family raw {
EOF
test_port_shadow "port-notrack" "ROUTER"
- ip netns exec "$ns0" nft delete table $family raw
+ ip netns exec "$ns0" nft delete table "$family" raw
}
# This prevents port shadow of router service via sport remap.
@@ -886,21 +815,19 @@ table $family pat {
EOF
test_port_shadow "pat" "ROUTER"
- ip netns exec "$ns0" nft delete table $family pat
+ ip netns exec "$ns0" nft delete table "$family" pat
}
test_port_shadowing()
{
local family="ip"
- conntrack -h >/dev/null 2>&1
- if [ $? -ne 0 ];then
+ if ! conntrack -h >/dev/null 2>&1;then
echo "SKIP: Could not run nat port shadowing test without conntrack tool"
return
fi
- socat -h > /dev/null 2>&1
- if [ $? -ne 0 ];then
+ if ! socat -h > /dev/null 2>&1;then
echo "SKIP: Could not run nat port shadowing test without socat tool"
return
fi
@@ -946,8 +873,7 @@ test_stateless_nat_ip()
ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
echo "ERROR: cannot ping $ns1 from $ns2 before loading stateless rules"
return 1
fi
@@ -981,23 +907,20 @@ EOF
reset_counters
- ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null # ping ns2->ns1
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null; then
echo "ERROR: cannot ping $ns1 from $ns2 with stateless rules"
lret=1
fi
# ns1 should have seen packets from .2.2, due to stateless rewrite.
expect="packets 1 bytes 84"
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect";then
bad_counter "$ns1" ns0insl "$expect" "test_stateless 1"
lret=1
fi
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect";then
bad_counter "$ns2" ns1$dir "$expect" "test_stateless 2"
lret=1
fi
@@ -1006,14 +929,12 @@ EOF
# ns1 should not have seen packets from ns2, due to masquerade
expect="packets 0 bytes 0"
for dir in "in" "out" ; do
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect";then
bad_counter "$ns1" ns0$dir "$expect" "test_stateless 3"
lret=1
fi
- cnt=$(ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect";then
bad_counter "$ns0" ns1$dir "$expect" "test_stateless 4"
lret=1
fi
@@ -1021,8 +942,7 @@ EOF
reset_counters
- socat -h > /dev/null 2>&1
- if [ $? -ne 0 ];then
+ if ! socat -h > /dev/null 2>&1;then
echo "SKIP: Could not run stateless nat frag test without socat tool"
if [ $lret -eq 0 ]; then
return $ksft_skip
@@ -1032,42 +952,36 @@ EOF
return $lret
fi
- local tmpfile=$(mktemp)
- dd if=/dev/urandom of=$tmpfile bs=4096 count=1 2>/dev/null
+ dd if=/dev/urandom of="$INFILE" bs=4096 count=1 2>/dev/null
- local outfile=$(mktemp)
- ip netns exec "$ns1" timeout 3 socat -u UDP4-RECV:4233 OPEN:$outfile < /dev/null &
- sc_r=$!
+ ip netns exec "$ns1" timeout 3 socat -u UDP4-RECV:4233 OPEN:"$OUTFILE" < /dev/null 2>/dev/null &
+
+ busywait $BUSYWAIT_TIMEOUT listener_ready "$ns1" 4233 "-u"
- sleep 1
# re-do with large ping -> ip fragmentation
- ip netns exec "$ns2" timeout 3 socat - UDP4-SENDTO:"10.0.1.99:4233" < "$tmpfile" > /dev/null
- if [ $? -ne 0 ] ; then
+ if ! ip netns exec "$ns2" timeout 3 socat -u STDIN UDP4-SENDTO:"10.0.1.99:4233" < "$INFILE" > /dev/null;then
echo "ERROR: failed to test udp $ns1 to $ns2 with stateless ip nat" 1>&2
lret=1
fi
wait
- cmp "$tmpfile" "$outfile"
- if [ $? -ne 0 ]; then
- ls -l "$tmpfile" "$outfile"
+ if ! cmp "$INFILE" "$OUTFILE";then
+ ls -l "$INFILE" "$OUTFILE"
echo "ERROR: in and output file mismatch when checking udp with stateless nat" 1>&2
lret=1
fi
- rm -f "$tmpfile" "$outfile"
+ :> "$OUTFILE"
# ns1 should have seen packets from 2.2, due to stateless rewrite.
expect="packets 3 bytes 4164"
- cnt=$(ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect")
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect";then
bad_counter "$ns1" ns0insl "$expect" "test_stateless 5"
lret=1
fi
- ip netns exec "$ns0" nft delete table ip stateless
- if [ $? -ne 0 ]; then
+ if ! ip netns exec "$ns0" nft delete table ip stateless; then
echo "ERROR: Could not delete table ip stateless" 1>&2
lret=1
fi
@@ -1078,8 +992,8 @@ EOF
}
# ip netns exec "$ns0" ping -c 1 -q 10.0.$i.99
-for i in 0 1 2; do
-ip netns exec ns$i-$sfx nft -f /dev/stdin <<EOF
+for i in "$ns0" "$ns1" "$ns2" ;do
+ip netns exec "$i" nft -f /dev/stdin <<EOF
table inet filter {
counter ns0in {}
counter ns1in {}
@@ -1145,7 +1059,7 @@ done
# special case for stateless nat check, counter needs to
# be done before (input) ip defragmentation
-ip netns exec ns1-$sfx nft -f /dev/stdin <<EOF
+ip netns exec "$ns1" nft -f /dev/stdin <<EOF
table inet filter {
counter ns0insl {}
@@ -1156,31 +1070,49 @@ table inet filter {
}
EOF
-sleep 3
-# test basic connectivity
-for i in 1 2; do
- ip netns exec "$ns0" ping -c 1 -q 10.0.$i.99 > /dev/null
- if [ $? -ne 0 ];then
- echo "ERROR: Could not reach other namespace(s)" 1>&2
- ret=1
- fi
-
- ip netns exec "$ns0" ping -c 1 -q dead:$i::99 > /dev/null
- if [ $? -ne 0 ];then
- echo "ERROR: Could not reach other namespace(s) via ipv6" 1>&2
- ret=1
- fi
- check_counters ns$i-$sfx
- if [ $? -ne 0 ]; then
- ret=1
- fi
-
- check_ns0_counters ns$i
- if [ $? -ne 0 ]; then
- ret=1
- fi
- reset_counters
-done
+ping_basic()
+{
+ i="$1"
+ if ! ip netns exec "$ns0" ping -c 1 -q 10.0."$i".99 > /dev/null;then
+ echo "ERROR: Could not reach other namespace(s)" 1>&2
+ ret=1
+ fi
+
+ if ! ip netns exec "$ns0" ping -c 1 -q dead:"$i"::99 > /dev/null;then
+ echo "ERROR: Could not reach other namespace(s) via ipv6" 1>&2
+ ret=1
+ fi
+}
+
+test_basic_conn()
+{
+ local nsexec
+ name="$1"
+
+ nsexec=$(eval echo \$"$1")
+
+ ping_basic 1
+ ping_basic 2
+
+ if ! check_counters "$nsexec";then
+ return 1
+ fi
+
+ if ! check_ns0_counters "$name";then
+ return 1
+ fi
+
+ reset_counters
+ return 0
+}
+
+if ! test_basic_conn "ns1" ; then
+ echo "ERROR: basic test for ns1 failed" 1>&2
+ exit 1
+fi
+if ! test_basic_conn "ns2"; then
+ echo "ERROR: basic test for ns1 failed" 1>&2
+fi
if [ $ret -eq 0 ];then
echo "PASS: netns routing/connectivity: $ns0 can reach $ns1 and $ns2"
--
2.43.2
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