[PATCH v3 18/18] selftests: net/fcnal: Initial tcp_authopt support

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Tests are mostly copied from tcp_md5 with minor changes.

It covers VRF support but only based on binding multiple servers: not
multiple keys bound to different interfaces.

Also add a specific -t tcp_authopt to run only these tests specifically.

Signed-off-by: Leonard Crestez <cdleonard@xxxxxxxxx>
---
 tools/testing/selftests/net/fcnal-test.sh | 298 ++++++++++++++++++++++
 1 file changed, 298 insertions(+)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 32d5f7bc588e..e99b44f0ae5a 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -807,10 +807,301 @@ ipv4_ping()
 }
 
 ################################################################################
 # IPv4 TCP
 
+#
+# TCP Authentication Option Tests
+#
+
+# try to enable tcp_authopt sysctl
+enable_tcp_authopt()
+{
+	if [[ -e /proc/sys/net/ipv4/tcp_authopt ]]; then
+		sysctl -w net.ipv4.tcp_authopt=1
+	fi
+}
+
+# check if tcp_authopt is compiled with a client-side bind test
+has_tcp_authopt()
+{
+	run_cmd_nsb nettest -b -A ${MD5_PW} -r ${NSA_IP}
+}
+
+ipv4_tcp_authopt_novrf()
+{
+	enable_tcp_authopt
+	if ! has_tcp_authopt; then
+		echo "TCP-AO appears to be missing, skip"
+		return 0
+	fi
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: Single address config"
+
+	log_start
+	run_cmd nettest -s  &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 2 "AO: Server no config, client uses password"
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: Client uses wrong password"
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} -m ${NSB_LO_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 2 "AO: Client address does not match address configured on server"
+
+	# client in prefix
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -A ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s -A ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest -c ${NSB_LO_IP} -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 2 "AO: Prefix config, client address not in configured prefix"
+}
+
+ipv6_tcp_authopt_novrf()
+{
+	enable_tcp_authopt
+	if ! has_tcp_authopt; then
+		echo "TCP-AO appears to be missing, skip"
+		return 0
+	fi
+
+	log_start
+	run_cmd nettest -6 -s -A ${MD5_PW} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 0 "AO: Simple correct config"
+
+	log_start
+	run_cmd nettest -6 -s
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 2 "AO: Server no config, client uses password"
+
+	log_start
+	run_cmd nettest -6 -s -A ${MD5_PW} -m ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: Client uses wrong password"
+
+	log_start
+	run_cmd nettest -6 -s -A ${MD5_PW} -m ${NSB_LO_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 2 "AO: Client address does not match address configured on server"
+}
+
+ipv4_tcp_authopt_vrf()
+{
+	enable_tcp_authopt
+	if ! has_tcp_authopt; then
+		echo "TCP-AO appears to be missing, skip"
+		return 0
+	fi
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -A ${MD5_PW} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Simple config"
+
+	#
+	# duplicate config between default VRF and a VRF
+	#
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -A ${MD5_WRONG_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Servers in default-VRF and VRF, client in VRF"
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -A ${MD5_WRONG_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsc nettest -r ${NSA_IP} -A ${MD5_WRONG_PW}
+	log_test $? 0 "AO: VRF: Servers in default-VRF and VRF, client in default-VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -A ${MD5_WRONG_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsc nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 2 "AO: VRF: Servers in default VRF and VRF, conn in default-VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -A ${MD5_WRONG_PW} -m ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: VRF: Servers in default VRF and VRF, conn in VRF with default-VRF pw"
+
+	test_ipv4_tcp_authopt_vrf__global_server__bind_ifindex0
+}
+
+test_ipv4_tcp_authopt_vrf__global_server__bind_ifindex0()
+{
+	# This particular test needs tcp_l3mdev_accept=1 for Global server to accept VRF connections
+	local old_tcp_l3mdev_accept
+	old_tcp_l3mdev_accept=$(get_sysctl net.ipv4.tcp_l3mdev_accept)
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} --force-bind-key-ifindex &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 2 "AO: VRF: Global server, Key bound to ifindex=0 rejects VRF connection"
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} --force-bind-key-ifindex &
+	sleep 1
+	run_cmd_nsc nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Global server, key bound to ifindex=0 accepts non-VRF connection"
+	log_start
+
+	run_cmd nettest -s -A ${MD5_PW} --no-bind-key-ifindex &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Global server, key not bound to ifindex accepts VRF connection"
+
+	log_start
+	run_cmd nettest -s -A ${MD5_PW} --no-bind-key-ifindex &
+	sleep 1
+	run_cmd_nsc nettest -r ${NSA_IP} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Global server, key not bound to ifindex accepts non-VRF connection"
+
+	# restore value
+	set_sysctl net.ipv4.tcp_l3mdev_accept="$old_tcp_l3mdev_accept"
+}
+
+ipv6_tcp_authopt_vrf()
+{
+	enable_tcp_authopt
+	if ! has_tcp_authopt; then
+		echo "TCP-AO appears to be missing, skip"
+		return 0
+	fi
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Simple config"
+
+	#
+	# duplicate config between default VRF and a VRF
+	#
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Servers in default-VRF and VRF, client in VRF"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -A ${MD5_WRONG_PW}
+	log_test $? 0 "AO: VRF: Servers in default-VRF and VRF, client in default-VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 2 "AO: VRF: Servers in default VRF and VRF, conn in default-VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: VRF: Servers in default VRF and VRF, conn in VRF with default-VRF pw"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 0 "AO: VRF: Prefix config in default VRF and VRF, conn in VRF"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -A ${MD5_WRONG_PW}
+	log_test $? 0 "AO: VRF: Prefix config in default VRF and VRF, conn in default VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -A ${MD5_PW}
+	log_test $? 2 "AO: VRF: Prefix config in def VRF and VRF, conn in def VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -A ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -A ${MD5_WRONG_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -A ${MD5_WRONG_PW}
+	log_test $? 2 "AO: VRF: Prefix config in dev VRF and VRF, conn in VRF with def VRF pw"
+}
+
+only_tcp_authopt()
+{
+	log_section "TCP Authentication Option"
+
+	setup
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+	log_subsection "TCP-AO IPv4 no VRF"
+	ipv4_tcp_authopt_novrf
+	log_subsection "TCP-AO IPv6 no VRF"
+	ipv6_tcp_authopt_novrf
+
+	setup "yes"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+	log_subsection "TCP-AO IPv4 VRF"
+	ipv4_tcp_authopt_vrf
+	log_subsection "TCP-AO IPv6 VRF"
+	ipv6_tcp_authopt_vrf
+}
+
 #
 # MD5 tests without VRF
 #
 ipv4_tcp_md5_novrf()
 {
@@ -1192,10 +1483,11 @@ ipv4_tcp_novrf()
 	show_hint "Should fail 'Connection refused'"
 	run_cmd nettest -d ${NSA_DEV} -r ${a}
 	log_test_addr ${a} $? 1 "No server, device client, local conn"
 
 	ipv4_tcp_md5_novrf
+	ipv4_tcp_authopt_novrf
 }
 
 ipv4_tcp_vrf()
 {
 	local a
@@ -1246,10 +1538,12 @@ ipv4_tcp_vrf()
 	run_cmd nettest -r ${a} -d ${NSA_DEV}
 	log_test_addr ${a} $? 1 "Global server, local connection"
 
 	# run MD5 tests
 	ipv4_tcp_md5
+	# run AO tests
+	ipv6_tcp_md5_vrf
 
 	#
 	# enable VRF global server
 	#
 	log_subsection "VRF Global server enabled"
@@ -2672,10 +2966,11 @@ ipv6_tcp_novrf()
 		run_cmd nettest -6 -d ${NSA_DEV} -r ${a}
 		log_test_addr ${a} $? 1 "No server, device client, local conn"
 	done
 
 	ipv6_tcp_md5_novrf
+	ipv6_tcp_authopt_novrf
 }
 
 ipv6_tcp_vrf()
 {
 	local a
@@ -2742,10 +3037,12 @@ ipv6_tcp_vrf()
 	run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
 	log_test_addr ${a} $? 1 "Global server, local connection"
 
 	# run MD5 tests
 	ipv6_tcp_md5
+	# run AO tests
+	ipv6_tcp_authopt_vrf
 
 	#
 	# enable VRF global server
 	#
 	log_subsection "VRF Global server enabled"
@@ -4102,10 +4399,11 @@ do
 	ipv6_bind|bind6) ipv6_addr_bind;;
 	ipv6_runtime)    ipv6_runtime;;
 	ipv6_netfilter)  ipv6_netfilter;;
 
 	use_cases)       use_cases;;
+	tcp_authopt)     only_tcp_authopt;;
 
 	# setup namespaces and config, but do not run any tests
 	setup)		 setup; exit 0;;
 	vrf_setup)	 setup "yes"; exit 0;;
 	esac
-- 
2.25.1




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