All existing test iterations assume that the FTP server is running on a standard port, which may not always be the case.
Userspace conntrack does not handle non-standard serverports properly when helpers are involved, which makes this use case interesting for testing. Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktio...@arknetworks.am> --- tests/system-common-macros.at | 15 +++-- tests/system-traffic.at | 106 ++++++++++++++++++++++++++++++++++ tests/test-l7.py | 4 ++ 3 files changed, 120 insertions(+), 5 deletions(-) diff --git a/tests/system-common-macros.at b/tests/system-common-macros.at index 0077a8609..24f7ad98b 100644 --- a/tests/system-common-macros.at +++ b/tests/system-common-macros.at @@ -276,18 +276,23 @@ m4_define([NETNS_DAEMONIZE], m4_define([OVS_CHECK_FIREWALL], [AT_SKIP_IF([systemctl status firewalld 2>&1 | grep running > /dev/null])]) -# OVS_START_L7([namespace], [protocol]) +# OVS_START_L7([namespace], [protocol], [port]) # -# Start a server serving 'protocol' within 'namespace'. The server will exit -# when the test finishes. +# Start a server serving 'protocol' on port 'port' within 'namespace'. +# If 'port' is not specified, the standard one for 'protocol' will be used. +# The server will exit when the test finishes. # m4_define([OVS_START_L7], [PIDFILE=$(mktemp $2XXX.pid) - NETNS_DAEMONIZE([$1], [[$PYTHON3 $srcdir/test-l7.py $2]], [$PIDFILE]) + NETNS_DAEMONIZE([$1], [[$PYTHON3 $srcdir/test-l7.py $2 $3]], [$PIDFILE]) dnl netstat doesn't print http over IPv6 as "http6"; drop the number. PROTO=$(echo $2 | sed -e 's/\([[a-zA-Z]]*\).*/\1/') - OVS_WAIT_UNTIL([NS_EXEC([$1], [netstat -l | grep $PROTO])]) + if test -z "$3"; then + OVS_WAIT_UNTIL([NS_EXEC([$1], [netstat -l | grep $PROTO])]) + else + OVS_WAIT_UNTIL([NS_EXEC([$1], [netstat -ln | grep :$3])]) + fi ] ) diff --git a/tests/system-traffic.at b/tests/system-traffic.at index 808c492a2..9a48feb87 100644 --- a/tests/system-traffic.at +++ b/tests/system-traffic.at @@ -5317,6 +5317,112 @@ tcp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),reply=(src= OVS_TRAFFIC_VSWITCHD_STOP AT_CLEANUP +AT_SETUP([conntrack - FTP non-standard port]) +AT_SKIP_IF([test $HAVE_FTP = no]) +CHECK_CONNTRACK() +CHECK_CONNTRACK_ALG() +OVS_TRAFFIC_VSWITCHD_START() + +ADD_NAMESPACES(at_ns0, at_ns1) + +ADD_VETH(p0, at_ns0, br0, "10.1.1.1/24") +ADD_VETH(p1, at_ns1, br0, "10.1.1.2/24") + +dnl Allow any traffic from ns0->ns1. Only allow nd, return traffic from ns1->ns0. +AT_DATA([flows1.txt], [dnl +table=0,priority=1,action=drop +table=0,priority=10,arp,action=normal +table=0,priority=10,icmp,action=normal +table=0,priority=100,in_port=1,tcp,action=ct(alg=ftp,commit),2 +table=0,priority=100,in_port=2,tcp,action=ct(table=1) +table=1,in_port=2,tcp,ct_state=+trk+est,action=1 +table=1,in_port=2,tcp,ct_state=+trk+rel,action=1 +]) + +dnl Similar policy but without allowing all traffic from ns0->ns1. +AT_DATA([flows2.txt], [dnl +table=0,priority=1,action=drop +table=0,priority=10,arp,action=normal +table=0,priority=10,icmp,action=normal + +dnl Allow outgoing TCP connections, and treat them as FTP +table=0,priority=100,in_port=1,tcp,action=ct(table=1) +table=1,in_port=1,tcp,ct_state=+trk+new,action=ct(commit,alg=ftp),2 +table=1,in_port=1,tcp,ct_state=+trk+est,action=2 + +dnl Allow incoming FTP data connections and responses to existing connections +table=0,priority=100,in_port=2,tcp,action=ct(table=1) +table=1,in_port=2,tcp,ct_state=+trk+new+rel,action=ct(commit),1 +table=1,in_port=2,tcp,ct_state=+trk+est,action=1 +table=1,in_port=2,tcp,ct_state=+trk-new+rel,action=1 +]) + +dnl flows3 is same as flows1, except no ALG is specified. +AT_DATA([flows3.txt], [dnl +table=0,priority=1,action=drop +table=0,priority=10,arp,action=normal +table=0,priority=10,icmp,action=normal +table=0,priority=100,in_port=1,tcp,action=ct(commit),2 +table=0,priority=100,in_port=2,tcp,action=ct(table=1) +table=1,in_port=2,tcp,ct_state=+trk+est,action=1 +table=1,in_port=2,tcp,ct_state=+trk+rel,action=1 +]) + +AT_CHECK([ovs-ofctl --bundle replace-flows br0 flows1.txt]) + +OVS_START_L7([at_ns0], [ftp], [11111]) +OVS_START_L7([at_ns1], [ftp], [11111]) + +dnl FTP requests from p1->p0 should fail due to network failure. +dnl Try 3 times, in 1 second intervals. +NS_CHECK_EXEC([at_ns1], [wget ftp://10.1.1.1:11111 --no-passive-ftp -t 3 -T 1 -v -o wget1.log], [4]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.1)], [0], [dnl +]) + +dnl FTP requests from p0->p1 should work fine. +NS_CHECK_EXEC([at_ns0], [wget ftp://10.1.1.2:11111 --no-passive-ftp -t 3 -T 1 --retry-connrefused -v -o wget0.log]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.2)], [0], [dnl +tcp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),reply=(src=10.1.1.2,dst=10.1.1.1,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>),helper=ftp +]) + +dnl Try the second set of flows. +AT_CHECK([ovs-ofctl --bundle replace-flows br0 flows2.txt]) +AT_CHECK([ovs-appctl dpctl/flush-conntrack]) + +dnl FTP requests from p1->p0 should fail due to network failure. +dnl Try 3 times, in 1 second intervals. +NS_CHECK_EXEC([at_ns1], [wget ftp://10.1.1.1:11111 --no-passive-ftp -t 3 -T 1 -v -o wget1.log], [4]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.1)], [0], [dnl +]) + +dnl Active FTP requests from p0->p1 should work fine. +NS_CHECK_EXEC([at_ns0], [wget ftp://10.1.1.2:11111 --no-passive-ftp -t 3 -T 1 --retry-connrefused -v -o wget0-1.log]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.2)], [0], [dnl +tcp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),reply=(src=10.1.1.2,dst=10.1.1.1,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>),helper=ftp +tcp,orig=(src=10.1.1.2,dst=10.1.1.1,sport=<cleared>,dport=<cleared>),reply=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +]) + +AT_CHECK([ovs-appctl dpctl/flush-conntrack]) + +dnl Passive FTP requests from p0->p1 should work fine. +NS_CHECK_EXEC([at_ns0], [wget ftp://10.1.1.2:11111 -t 3 -T 1 --retry-connrefused -v -o wget0-2.log]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.2)], [0], [dnl +tcp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),reply=(src=10.1.1.2,dst=10.1.1.1,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>),helper=ftp +]) + +dnl Try the third set of flows, without alg specifier. +AT_CHECK([ovs-ofctl --bundle replace-flows br0 flows3.txt]) +AT_CHECK([ovs-appctl dpctl/flush-conntrack]) + +dnl FTP control requests from p0->p1 should work fine, but helper will not be assigned. +NS_CHECK_EXEC([at_ns0], [wget ftp://10.1.1.2:11111 --no-passive-ftp -t 3 -T 1 --retry-connrefused -v -o wget0-3.log], [4]) +AT_CHECK([ovs-appctl dpctl/dump-conntrack | FORMAT_CT(10.1.1.2)], [0], [dnl +tcp,orig=(src=10.1.1.1,dst=10.1.1.2,sport=<cleared>,dport=<cleared>),reply=(src=10.1.1.2,dst=10.1.1.1,sport=<cleared>,dport=<cleared>),protoinfo=(state=<cleared>) +]) + +OVS_TRAFFIC_VSWITCHD_STOP +AT_CLEANUP + AT_SETUP([conntrack - FTP with expectation dump]) AT_SKIP_IF([test $HAVE_FTP = no]) CHECK_CONNTRACK() diff --git a/tests/test-l7.py b/tests/test-l7.py index 32a77392c..97cd4f29a 100755 --- a/tests/test-l7.py +++ b/tests/test-l7.py @@ -86,6 +86,8 @@ def main(): description='Run basic application servers.') parser.add_argument('proto', default='http', nargs='?', help='protocol to serve (%s)' % protocols) + parser.add_argument('port', default=0, nargs='?', + help='server port number') args = parser.parse_args() if args.proto not in protocols: @@ -95,6 +97,8 @@ def main(): constructor = SERVERS[args.proto][0] handler = SERVERS[args.proto][1] port = SERVERS[args.proto][2] + if args.port != 0: + port = args.port srv = constructor(('', port), handler) srv.serve_forever() -- 2.42.0 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev