fcnal-test: Add TCP MD5 tests

Add tests for existing TCP MD5 APIs - both single address
config and the new extended API for prefixes.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/fcnal-test.sh

@@ -45,17 +45,22 @@ VRF_TABLE=1101
 NSA_IP=172.16.1.1
 NSB_IP=172.16.1.2
 VRF_IP=172.16.3.1
+NS_NET=172.16.1.0/24
 
 # IPv6 config
 NSA_IP6=2001:db8:1::1
 NSB_IP6=2001:db8:1::2
 VRF_IP6=2001:db8:3::1
+NS_NET6=2001:db8:1::/120
 
 NSA_LO_IP=172.16.2.1
 NSB_LO_IP=172.16.2.2
 NSA_LO_IP6=2001:db8:2::1
 NSB_LO_IP6=2001:db8:2::2
 
+MD5_PW=abc123
+MD5_WRONG_PW=abc1234
+
 MCAST=ff02::1
 # set after namespace create
 NSA_LINKIP6=
@@ -714,6 +719,74 @@ ipv4_ping()
 ################################################################################
 # IPv4 TCP
 
+#
+# MD5 tests without VRF
+#
+ipv4_tcp_md5_novrf()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -r ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+	log_test $? 0 "MD5: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+	log_test $? 2 "MD5: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -M ${MD5_PW} -r ${NSB_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s -M ${MD5_PW} -r ${NSB_LO_IP} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_PW}
+	log_test $? 2 "MD5: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest  -r ${NSA_IP} -M ${MD5_PW}
+	log_test $? 0 "MD5: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest -r ${NSA_IP} -M ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	sleep 1
+	run_cmd_nsb nettest -l ${NSB_LO_IP} -r ${NSA_IP} -M ${MD5_PW}
+	log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
 ipv4_tcp_novrf()
 {
 	local a
@@ -831,6 +904,8 @@ 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_vrf()
@@ -1961,6 +2036,74 @@ ipv6_ping()
 ################################################################################
 # IPv6 TCP
 
+#
+# MD5 tests without VRF
+#
+ipv6_tcp_md5_novrf()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+	log_test $? 0 "MD5: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+	log_test $? 2 "MD5: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s -M ${MD5_PW} -r ${NSB_LO_IP6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_PW}
+	log_test $? 2 "MD5: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsb nettest -6  -r ${NSA_IP6} -M ${MD5_PW}
+	log_test $? 0 "MD5: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -M ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	sleep 1
+	run_cmd_nsb nettest -6 -l ${NSB_LO_IP6} -r ${NSA_IP6} -M ${MD5_PW}
+	log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
 ipv6_tcp_novrf()
 {
 	local a
@@ -2077,6 +2220,8 @@ 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_vrf()