diff --git a/tools/testing/selftests/net/openvswitch/config b/tools/testing/selftests/net/openvswitch/config index a825e0b5c88e..15685d242813 100644 --- a/tools/testing/selftests/net/openvswitch/config +++ b/tools/testing/selftests/net/openvswitch/config @@ -3,10 +3,13 @@ CONFIG_INET_DIAG=y CONFIG_IP_SCTP=y CONFIG_IPV6=y CONFIG_NETFILTER=y +CONFIG_NETFILTER_ADVANCED=y CONFIG_NET_IPGRE=m CONFIG_NET_IPGRE_DEMUX=m CONFIG_NF_CONNTRACK=m CONFIG_NF_CONNTRACK_OVS=y +CONFIG_NF_CT_PROTO_SCTP=y +CONFIG_NF_NAT=m CONFIG_OPENVSWITCH=m CONFIG_PSAMPLE=m CONFIG_VETH=y diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index a31f7fb6882d..21444657a040 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -34,6 +34,8 @@ tests=" trunc trunc: output truncation icmpv6 icmpv6: ICMPv6 echo type match sctp_connect_v4 sctp: SCTP flow key matching + sctp_connect_v6 sctp6: SCTP flow keys over IPv6 + sctp_nat_connect_v4 sctpnat4: SCTP NAT translation psample psample: Sampling packets with psample" info() { @@ -700,6 +702,114 @@ test_sctp_connect_v4() { return 0 } +# sctp_connect_v6 test +# - sctp(dst=4443) matches client-to-server INIT +# - sctp(src=4443) matches server-to-client INIT-ACK +# - icmpv6 NS/NA flows forward neighbour discovery +# - remove flows and verify connection fails, reinstall and recover +test_sctp_connect_v6() { + local t="test_sctp_connect_v6" + local v6="eth_type(0x86dd),ipv6(proto=132)" + local payload="SCTP6_DATA_OK" + local rxfile="${ovs_base}/${t}/sctp-rx.txt" + + modprobe -q sctp 2>/dev/null || return "$ksft_skip" + socat -V 2>&1 | grep -q "define WITH_SCTP" || return "$ksft_skip" + socat -V 2>&1 | grep -q "define WITH_IP6" || return "$ksft_skip" + [ -e /proc/sys/net/ipv6 ] || return "$ksft_skip" + + sbx_add "$t" || return $? + ovs_add_dp "$t" sctp6 || return 1 + + info "create namespaces" + for ns in client server; do + ovs_add_netns_and_veths "$t" "sctp6" "$ns" \ + "${ns:0:1}0" "${ns:0:1}1" || return 1 + done + + ip netns exec client ip addr add fd00::1/64 dev c1 nodad + ip netns exec client ip link set c1 up + ip netns exec server ip addr add fd00::2/64 dev s1 nodad + ip netns exec server ip link set s1 up + + # NS/NA forwarding + ovs_add_flow "$t" sctp6 \ + 'in_port(1),eth(),eth_type(0x86dd),ipv6(proto=58),icmpv6()' \ + '2' || return 1 + ovs_add_flow "$t" sctp6 \ + 'in_port(2),eth(),eth_type(0x86dd),ipv6(proto=58),icmpv6()' \ + '1' || return 1 + + # SCTP port matching: dst for request, src for reply + ovs_add_flow "$t" sctp6 \ + "in_port(1),eth(),$v6,sctp(dst=4443)" \ + '2' || return 1 + ovs_add_flow "$t" sctp6 \ + "in_port(2),eth(),$v6,sctp(src=4443)" \ + '1' || return 1 + + # A keyless ipv6(proto=132) install must be refused (EINVAL): + # match_validate() requires the sctp() key. Pin the reject side + # of that rule; the keyed installs above cover the accept side. + # Verify the refusal is EINVAL (missing key), not a parse error. + err=$(ovs_sbx "$t" python3 $ovs_base/ovs-dpctl.py add-flow sctp6 \ + "in_port(1),eth(),$v6" '2' 2>&1 >/dev/null) \ + && { info "keyless SCTP flow should be refused" + return 1; } + echo "$err" | grep -q "(22," || { + info "keyless SCTP flow refused for wrong reason: $err" + return 1 + } + + ovs_netns_spawn_daemon "$t" "server" \ + socat -u -t 1 SCTP6-LISTEN:4443,fork \ + OPEN:"$rxfile",creat,append + ovs_wait sctp_eps_has server 4443 || return 1 + + info "verify SCTP association with port-keyed flows" + ovs_sbx "$t" ip netns exec client \ + timeout 3 socat -u STDIN "SCTP6-CONNECT:[fd00::2]:4443" /dev/null 2>&1 \ + && { info "connection should fail without flows" + return 1; } + + info "reinstall flows and verify recovery" + ovs_add_flow "$t" sctp6 \ + "in_port(1),eth(),$v6,sctp(dst=4443)" \ + '2' || return 1 + ovs_add_flow "$t" sctp6 \ + "in_port(2),eth(),$v6,sctp(src=4443)" \ + '1' || return 1 + + ovs_sbx "$t" ip netns exec client \ + timeout 3 socat -u STDIN "SCTP6-CONNECT:[fd00::2]:4443" /dev/null || return "$ksft_skip" + socat -V 2>&1 | grep -q "define WITH_SCTP" || return "$ksft_skip" + # SCTP conntrack is compiled into nf_conntrack.ko, so check that + # loading it actually exposed the SCTP conntrack sysctls. + modprobe -q nf_conntrack 2>/dev/null || return "$ksft_skip" + [ -e /proc/sys/net/netfilter/nf_conntrack_sctp_timeout_established ] \ + || { info "no SCTP conntrack support - skipping" + return "$ksft_skip"; } + + sbx_add "test_sctp_nat_connect_v4" || return $? + + ovs_add_dp "test_sctp_nat_connect_v4" sctpnat4 || return 1 + info "create namespaces" + for ns in client server; do + ovs_add_netns_and_veths "test_sctp_nat_connect_v4" "sctpnat4" \ + "$ns" "${ns:0:1}0" "${ns:0:1}1" || return 1 + done + + ip netns exec client ip addr add 172.31.110.10/24 dev c1 + ip netns exec client ip link set c1 up + ip netns exec server ip addr add 172.31.110.20/24 dev s1 + ip netns exec server ip link set s1 up + + ip netns exec client ip route add default via 172.31.110.20 + + # Check if the ct and nat actions can be configured. + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ + 'ct(commit,nat(dst=172.31.110.20:5555)),recirc(0x1)' \ + &> /dev/null + if [ $? == 1 ]; then + info "no support for ct/nat actions - skipping" + ovs_exit_sig + return $ksft_skip + fi + + ovs_del_flows "test_sctp_nat_connect_v4" sctpnat4 + + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),"\ +"ipv4(dst=192.168.0.20)" \ + "ct(commit,nat(dst=172.31.110.20:5555)),recirc(0x1)" || return 1 + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ + "ct(commit,nat),recirc(0x2)" || return 1 + + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),"\ +"eth_type(0x0800),ipv4(dst=172.31.110.20,proto=132),"\ +"sctp(dst=5555)" \ + "2" || return 1 + ovs_add_flow "test_sctp_nat_connect_v4" sctpnat4 \ + "recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),"\ +"eth_type(0x0800),ipv4(src=192.168.0.20,proto=132),"\ +"sctp(src=4443)" \ + "1" || return 1 + + ovs_netns_spawn_daemon "test_sctp_nat_connect_v4" "server" \ + socat -u -t 1 SCTP4-LISTEN:5555,fork \ + OPEN:"$rxfile",creat,append + ovs_wait sctp_eps_has server 5555 || return 1 + + info "verify SCTP association across NAT" + ovs_sbx "test_sctp_nat_connect_v4" ip netns exec client \ + timeout 3 socat -u STDIN "SCTP4-CONNECT:192.168.0.20:4443" \ + server ip packets go via SNAT # - client solicits ICMP destination unreachable packet from server