tests: shell: add test to cover payload transport match and mangle

Exercise payload transport match and mangle for inet, bridge and netdev
families with IPv4 and IPv6 packets.

To cover kernel patch ("netfilter: nf_tables: set transport offset from
mac header for netdev/egress").

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

2 files changed, 180 insertions, 0 deletions

diff --git a/tests/shell/testcases/packetpath/dumps/payload.nodump b/tests/shell/testcases/packetpath/dumps/payload.nodump
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/shell/testcases/packetpath/dumps/payload.nodump
diff --git a/tests/shell/testcases/packetpath/payload b/tests/shell/testcases/packetpath/payload
new file mode 100755
index 00000000..1a89d853
--- /dev/null
+++ b/tests/shell/testcases/packetpath/payload
@@ -0,0 +1,180 @@
+#!/bin/bash
+
+rnd=$(mktemp -u XXXXXXXX)
+ns1="nft1payload-$rnd"
+ns2="nft2payload-$rnd"
+
+cleanup()
+{
+	ip netns del "$ns1"
+	ip netns del "$ns2"
+}
+
+trap cleanup EXIT
+
+run_test()
+{
+	ns1_addr=$2
+	ns2_addr=$3
+	cidr=$4
+
+	# socat needs square brackets, ie. [abcd::2]
+	if [ $1 -eq 6 ]; then
+		nsx1_addr="["$ns1_addr"]"
+		nsx2_addr="["$ns2_addr"]"
+	else
+		nsx1_addr="$ns1_addr"
+		nsx2_addr="$ns2_addr"
+	fi
+
+	ip netns add "$ns1" || exit 111
+	ip netns add "$ns2" || exit 111
+
+	ip -net "$ns1" link set lo up
+	ip -net "$ns2" link set lo up
+
+	ip link add veth0 netns $ns1 type veth peer name veth0 netns $ns2
+
+	ip -net "$ns1" link set veth0 up
+	ip -net "$ns2" link set veth0 up
+	ip -net "$ns1" addr add $ns1_addr/$cidr dev veth0
+	ip -net "$ns2" addr add $ns2_addr/$cidr dev veth0
+
+RULESET="table netdev payload_netdev {
+       counter ingress {}
+       counter egress {}
+       counter mangle_ingress {}
+       counter mangle_egress {}
+       counter mangle_ingress_match {}
+       counter mangle_egress_match {}
+
+       chain ingress {
+               type filter hook ingress device veth0 priority 0;
+               tcp dport 7777 counter name ingress
+               tcp dport 7778 tcp dport set 7779 counter name mangle_ingress
+               tcp dport 7779 counter name mangle_ingress_match
+       }
+
+       chain egress {
+               type filter hook egress device veth0 priority 0;
+               tcp dport 8887 counter name egress
+               tcp dport 8888 tcp dport set 8889 counter name mangle_egress
+               tcp dport 8889 counter name mangle_egress_match
+       }
+}
+
+table inet payload_inet {
+       counter input {}
+       counter output {}
+       counter mangle_input {}
+       counter mangle_output {}
+       counter mangle_input_match {}
+       counter mangle_output_match {}
+
+       chain in {
+               type filter hook input priority 0;
+               tcp dport 7770 counter name input
+               tcp dport 7771 tcp dport set 7772 counter name mangle_input
+               tcp dport 7772 counter name mangle_input_match
+       }
+
+       chain out {
+               type filter hook output priority 0;
+               tcp dport 8880 counter name output
+               tcp dport 8881 tcp dport set 8882 counter name mangle_output
+               tcp dport 8882 counter name mangle_output_match
+        }
+}"
+
+	ip netns exec "$ns1" $NFT -f - <<< "$RULESET" || exit 1
+
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8887,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8888,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8880,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8881,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7777,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7778,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7770,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7771,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns1" $NFT list ruleset
+
+	ip netns exec "$ns1" nft list counter netdev payload_netdev ingress | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter netdev payload_netdev mangle_ingress | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter netdev payload_netdev mangle_ingress_match | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter netdev payload_netdev egress | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter netdev payload_netdev mangle_egress | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter netdev payload_netdev mangle_egress_match | grep -v "packets 0" > /dev/null || exit 1
+
+	ip netns exec "$ns1" nft list counter inet payload_inet input | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter inet payload_inet mangle_input | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter inet payload_inet mangle_input_match | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter inet payload_inet output | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter inet payload_inet mangle_output | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter inet payload_inet mangle_output_match | grep -v "packets 0" > /dev/null || exit 1
+
+	#
+	# ... next stage
+	#
+
+	ip netns exec "$ns1" $NFT flush ruleset
+
+	#
+	# bridge
+	#
+
+	ip -net "$ns1" addr del $ns1_addr/$cidr dev veth0
+
+	ip -net "$ns1" link add name br0 type bridge
+	ip -net "$ns1" link set veth0 master br0
+	ip -net "$ns1" addr add $ns1_addr/$cidr dev br0
+	ip -net "$ns1" link set up dev br0
+
+RULESET="table bridge payload_bridge {
+       counter input {}
+       counter output {}
+       counter mangle_input {}
+       counter mangle_output {}
+       counter mangle_input_match {}
+       counter mangle_output_match {}
+
+       chain in {
+               type filter hook input priority 0;
+               tcp dport 7770 counter name input
+               tcp dport 7771 tcp dport set 7772 counter name mangle_input
+               tcp dport 7772 counter name mangle_input_match
+       }
+
+       chain out {
+               type filter hook output priority 0;
+               tcp dport 8880 counter name output
+               tcp dport 8881 tcp dport set 8882 counter name mangle_output
+               tcp dport 8882 counter name mangle_output_match
+        }
+}"
+
+	ip netns exec "$ns1" $NFT -f - <<< "$RULESET" || exit 1
+
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8880,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns1" socat -u STDIN TCP:$nsx2_addr:8881,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7770,connect-timeout=2 < /dev/null > /dev/null
+	ip netns exec "$ns2" socat -u STDIN TCP:$nsx1_addr:7771,connect-timeout=2 < /dev/null > /dev/null
+
+	ip netns exec "$ns1" $NFT list ruleset
+
+	ip netns exec "$ns1" nft list counter bridge payload_bridge input | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter bridge payload_bridge mangle_input | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter bridge payload_bridge mangle_input_match | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter bridge payload_bridge output | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter bridge payload_bridge mangle_output | grep -v "packets 0" > /dev/null || exit 1
+	ip netns exec "$ns1" nft list counter bridge payload_bridge mangle_output_match | grep -v "packets 0" > /dev/null || exit 1
+}
+
+run_test "4" "10.141.10.2" "10.141.10.3" "24"
+cleanup
+run_test 6 "abcd::2" "abcd::3" "64"
+# trap calls cleanup