On 10/31/25 2:09 AM, Changliang Wu wrote:
> Add new testsuit for lldp decode.

*testsuite

> 
> Signed-off-by: Changliang Wu <[email protected]>
> ---
>  .cirrus.yml        |   2 +-
>  tests/automake.mk  |   1 +
>  tests/ovs-lldp.at  | 397 +++++++++++++++++++++++++++++++++++++++++++++
>  tests/testsuite.at |   1 +
>  4 files changed, 400 insertions(+), 1 deletion(-)
>  create mode 100644 tests/ovs-lldp.at
> 
> diff --git a/.cirrus.yml b/.cirrus.yml
> index d49fbf02e..7031bc092 100644
> --- a/.cirrus.yml
> +++ b/.cirrus.yml
> @@ -9,7 +9,7 @@ freebsd_build_task:
>  
>    env:
>      DEPENDENCIES: automake libtool gmake gcc openssl python3
> -    PY_DEPS:      sphinx|netaddr|pyparsing
> +    PY_DEPS:      sphinx|netaddr|pyparsing|scapy
>      matrix:
>        COMPILER: gcc
>        COMPILER: clang
> diff --git a/tests/automake.mk b/tests/automake.mk
> index 59f538761..a453a0c4b 100644
> --- a/tests/automake.mk
> +++ b/tests/automake.mk
> @@ -68,6 +68,7 @@ TESTSUITE_AT = \
>       tests/tunnel.at \
>       tests/tunnel-push-pop.at \
>       tests/tunnel-push-pop-ipv6.at \
> +     tests/ovs-lldp.at \
>       tests/ovs-router.at \
>       tests/lockfile.at \
>       tests/reconnect.at \
> diff --git a/tests/ovs-lldp.at b/tests/ovs-lldp.at
> new file mode 100644
> index 000000000..60998e4e9
> --- /dev/null
> +++ b/tests/ovs-lldp.at
> @@ -0,0 +1,397 @@
> +AT_BANNER([ovs-lldp])

Can be just 'lldp' or even 'LLDP'.

> +
> +AT_SETUP([lldp - check lldp neighbor display])
> +

We need to skip the test is scapy is not available.
Ideally, we shouldn't use scapy for unit tests, unless it is necessary.
But I agree that in this particular case it is hard to write a good
test without it.  So, it's OK.


> +OVS_VSWITCHD_START([])
> +
> +add_of_ports br0 1
> +AT_CHECK([
> +    ovs-vsctl set Interface p1 type=dummy lldp:enable=true
> +], [0])

This can be a single line, and the [0] part is not needed, AT_CHECK
checks for the zero exit code by default.

> +
> +AT_CHECK([ovs-appctl netdev-dummy/receive p1 `python3 -c '

nit: Please, use $() instead of ``.

> +from scapy.all import *
> +from scapy.contrib.lldp import *
> +import socket
> +packet = Ether(src="aa:aa:aa:aa:aa:aa", dst=LLDP_NEAREST_BRIDGE_MAC)/\
> +        LLDPDUChassisID(subtype=LLDPDUChassisID.SUBTYPE_MAC_ADDRESS, 
> id=b"\x06\x05\x04\x03\x02\x01") /\
> +        LLDPDUPortID(subtype=LLDPDUPortID.SUBTYPE_INTERFACE_NAME, 
> id="GigabitEthernet1/0/1")/\
> +        LLDPDUTimeToLive(ttl=121)/\
> +        LLDPDUPortDescription(description="FakePortDesc")/\
> +        LLDPDUSystemName(system_name="FakeSystemName")/\
> +        LLDPDUSystemDescription(description="FakeSystemDesc")/\
> +        LLDPDUSystemCapabilities(
> +            other_available=1,
> +            repeater_available=1,
> +            mac_bridge_available=1,
> +            wlan_access_point_available=1,
> +            router_available=1,
> +            telephone_available=1,
> +            docsis_cable_device_available=1,
> +            station_only_available=1,
> +            mac_bridge_enabled=1,
> +            router_enabled=1

So, these are all enabled here...

> +            )/\
> +        LLDPDUManagementAddress(
> +            
> management_address_subtype=LLDPDUManagementAddress.SUBTYPE_MANAGEMENT_ADDRESS_IPV4,
> +            management_address=socket.inet_aton("1.2.3.4"),
> +            
> interface_numbering_subtype=LLDPDUManagementAddress.SUBTYPE_INTERFACE_NUMBER_IF_INDEX,
> +            interface_number=23) /\
> +        LLDPDUPowerViaMDI(MDI_power_support="PSE MDI power supported") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_3,
> +            subtype=4,
> +            data=int(10240).to_bytes(2,"big")) /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_3,
> +            subtype=1,
> +            data=b"\x03\x6c\x01\x00\x1e") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=1,
> +            data=int(1).to_bytes(2,"big")) /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=2,
> +            data=b"\x02\x00\x00") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=3,
> +            data=b"\x00\x01\x05\x56\x4c\x41\x4e\x31") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=3,
> +            data=b"\x00\x02\x05\x56\x4c\x41\x4e\x32") /\
> +        LLDPDUEndOfLLDPDU()
> +linehexdump(packet,onlyhex=True)' | tr -d ' '`])
> +
> +
> +AT_CHECK([ovs-appctl lldp/neighbor p1], [0], [dnl
> +[LLDP neighbor:
> +Interface: p1
> +  ChassisID[mac]:     06:05:04:03:02:01
> +  PortID[ifname]:     GigabitEthernet1/0/1
> +  TTL:                121
> +  PortDescr:          FakePortDesc
> +  SysName:            FakeSystemName
> +  SysDescr:           FakeSystemDesc
> +  Capability:         Bridge, on
> +  Capability:         Router, on
> +  Capability:         Wlan, off
> +  Capability:         Station, off
> +  Capability:         Repeater, off
> +  Capability:         Telephone, off
> +  Capability:         Docsis, off
> +  Capability:         Other, off

But reported as 'off' here.  Why?  Am I missing something?

> +  MgmtIP:             1.2.3.4
> +  MgmtIface:          23
> +  MFS:                10240
> +  PMD autoneg: supported: yes, enabled: yes
> +    Adv:              10Base-T, HD: yes, FD: yes
> +    Adv:              100Base-TX, HD: yes, FD: yes
> +    Adv:              1000Base-T, HD: no, FD: yes
> +    MAU oper type:    30
> +  MDI Power: supported: yes, enabled: no, pair control: no
> +  VLAN:               1, pvid: yes, VLAN1
> +  VLAN:               2, pvid: no, VLAN2
> +  PPVID:              0, supported: yes,enabled no]
> +])
> +
> +AT_CHECK([ovs-appctl --format json --pretty lldp/neighbor p1 ], [0], [dnl
> +[{
> +  "lldp": {
> +    "interface": [
> +      {
> +        "p1": {
> +          "chassis": {
> +            "FakeSystemName": {
> +              "capability": [
> +                {
> +                  "enabled": true,
> +                  "type": "Bridge"},
> +                {
> +                  "enabled": true,
> +                  "type": "Router"},
> +                {
> +                  "enabled": false,
> +                  "type": "Wlan"},
> +                {
> +                  "enabled": false,
> +                  "type": "Station"},
> +                {
> +                  "enabled": false,
> +                  "type": "Repeater"},
> +                {
> +                  "enabled": false,
> +                  "type": "Telephone"},
> +                {
> +                  "enabled": false,
> +                  "type": "Docsis"},
> +                {
> +                  "enabled": false,
> +                  "type": "Other"}],
> +              "descr": "FakeSystemDesc",
> +              "id": {
> +                "type": "mac",
> +                "value": "06:05:04:03:02:01"},
> +              "mgmt-iface": [
> +                23],
> +              "mgmt-ip": [
> +                "1.2.3.4"]}},
> +          "port": {
> +            "auto-negotiation": {
> +              "current": 30,
> +              "enabled": true,
> +              "supported": true},
> +            "desc": "FakePortDesc",
> +            "id": {
> +              "type": "ifname",
> +              "value": "GigabitEthernet1/0/1"},
> +            "mfs": 10240,
> +            "power": {
> +              "enabled": false,
> +              "paircontrol": false,
> +              "supported": true},
> +            "ttl": 121},
> +          "ppvid": [
> +            {
> +              "enabled": false,
> +              "supported": true}],
> +          "vlan": [
> +            {
> +              "pvid": true,
> +              "value": "VLAN1",
> +              "vlan-id": 1},
> +            {
> +              "pvid": false,
> +              "value": "VLAN2",
> +              "vlan-id": 2}]}}]}}]
> +])
> +
> +AT_CHECK([ovs-appctl netdev-dummy/receive p1 `python3 -c '
> +from scapy.all import *
> +from scapy.contrib.lldp import *
> +packet = Ether(src="ee:ee:ee:ee:ee:ee", dst=LLDP_NEAREST_BRIDGE_MAC)/\
> +        LLDPDUChassisID(subtype=LLDPDUChassisID.SUBTYPE_NETWORK_ADDRESS,
> +                    family="IPv4", id=b"5.6.7.8") /\
> +        LLDPDUPortID(subtype=LLDPDUPortID.SUBTYPE_INTERFACE_NAME,
> +                    id="GigabitEthernet1/0/2")/\
> +        LLDPDUTimeToLive(ttl=100)/\
> +        LLDPDUPortDescription(description="FakePortDesc1")/\
> +        LLDPDUSystemName(system_name="FakeSystemName1")/\
> +        LLDPDUSystemDescription(description="FakeSystemDesc1")/\
> +        LLDPDUSystemCapabilities(
> +            mac_bridge_available=1,
> +            router_available=1,
> +            mac_bridge_enabled=1
> +            )/\
> +        LLDPDUManagementAddress(
> +            
> management_address_subtype=LLDPDUManagementAddress.SUBTYPE_MANAGEMENT_ADDRESS_IPV4,
> +            management_address=socket.inet_aton("11.22.33.44"),
> +            
> interface_numbering_subtype=LLDPDUManagementAddress.SUBTYPE_INTERFACE_NUMBER_IF_INDEX,
> +            interface_number=100) /\
> +        LLDPDUManagementAddress(
> +            
> management_address_subtype=LLDPDUManagementAddress.SUBTYPE_MANAGEMENT_ADDRESS_IPV6,
> +            management_address=socket.inet_pton(socket.AF_INET6, "fe00::1"),
> +            
> interface_numbering_subtype=LLDPDUManagementAddress.SUBTYPE_INTERFACE_NUMBER_IF_INDEX,
> +            interface_number=200) /\
> +        LLDPDUPowerViaMDI(MDI_power_support="PSE MDI power supported") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_3,
> +            subtype=4,
> +            data=int(10240).to_bytes(2,"big")) /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_3,
> +            subtype=1,
> +            data=b"\x03\x6c\x01\x00\x1e") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=1,
> +            data=int(1).to_bytes(2,"big")) /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=2,
> +            data=b"\x06\x00\x0f") /\
> +        LLDPDUGenericOrganisationSpecific(
> +            
> org_code=LLDPDUGenericOrganisationSpecific.ORG_UNIQUE_CODE_IEEE_802_1,
> +            subtype=3,
> +            data=b"\x00\x02\x05\x56\x4c\x41\x4e\x32") /\
> +        LLDPDUEndOfLLDPDU()
> +linehexdump(packet,onlyhex=True)' | tr -d ' '`])
> +
> +AT_CHECK([ovs-appctl lldp/neighbor p1], [0], [dnl
> +[LLDP neighbor:
> +Interface: p1
> +  ChassisID[mac]:     06:05:04:03:02:01
> +  PortID[ifname]:     GigabitEthernet1/0/1
> +  TTL:                121
> +  PortDescr:          FakePortDesc
> +  SysName:            FakeSystemName
> +  SysDescr:           FakeSystemDesc
> +  Capability:         Bridge, on
> +  Capability:         Router, on
> +  Capability:         Wlan, off
> +  Capability:         Station, off
> +  Capability:         Repeater, off
> +  Capability:         Telephone, off
> +  Capability:         Docsis, off
> +  Capability:         Other, off
> +  MgmtIP:             1.2.3.4
> +  MgmtIface:          23
> +  MFS:                10240
> +  PMD autoneg: supported: yes, enabled: yes
> +    Adv:              10Base-T, HD: yes, FD: yes
> +    Adv:              100Base-TX, HD: yes, FD: yes
> +    Adv:              1000Base-T, HD: no, FD: yes
> +    MAU oper type:    30
> +  MDI Power: supported: yes, enabled: no, pair control: no
> +  VLAN:               1, pvid: yes, VLAN1
> +  VLAN:               2, pvid: no, VLAN2
> +  PPVID:              0, supported: yes,enabled no
> +
> +Interface: p1
> +  ChassisID[ip]:      5.6.7.8
> +  PortID[ifname]:     GigabitEthernet1/0/2
> +  TTL:                100
> +  PortDescr:          FakePortDesc1
> +  SysName:            FakeSystemName1
> +  SysDescr:           FakeSystemDesc1
> +  Capability:         Bridge, on
> +  Capability:         Router, off
> +  MgmtIP:             11.22.33.44
> +  MgmtIface:          100
> +  MgmtIP:             fe00::1
> +  MgmtIface:          200
> +  MFS:                10240
> +  PMD autoneg: supported: yes, enabled: yes
> +    Adv:              10Base-T, HD: yes, FD: yes
> +    Adv:              100Base-TX, HD: yes, FD: yes
> +    Adv:              1000Base-T, HD: no, FD: yes
> +    MAU oper type:    30
> +  MDI Power: supported: yes, enabled: no, pair control: no
> +  VLAN:               2, pvid: no, VLAN2
> +  VLAN:               1, pvid: yes
> +  PPVID:              15, supported: yes,enabled yes]
> +])
> +
> +AT_CHECK([ovs-appctl --format json --pretty lldp/neighbor p1 ], [0], [dnl
> +[{
> +  "lldp": {
> +    "interface": [
> +      {
> +        "p1": {
> +          "chassis": {
> +            "FakeSystemName": {
> +              "capability": [
> +                {
> +                  "enabled": true,
> +                  "type": "Bridge"},
> +                {
> +                  "enabled": true,
> +                  "type": "Router"},
> +                {
> +                  "enabled": false,
> +                  "type": "Wlan"},
> +                {
> +                  "enabled": false,
> +                  "type": "Station"},
> +                {
> +                  "enabled": false,
> +                  "type": "Repeater"},
> +                {
> +                  "enabled": false,
> +                  "type": "Telephone"},
> +                {
> +                  "enabled": false,
> +                  "type": "Docsis"},
> +                {
> +                  "enabled": false,
> +                  "type": "Other"}],
> +              "descr": "FakeSystemDesc",
> +              "id": {
> +                "type": "mac",
> +                "value": "06:05:04:03:02:01"},
> +              "mgmt-iface": [
> +                23],
> +              "mgmt-ip": [
> +                "1.2.3.4"]}},
> +          "port": {
> +            "auto-negotiation": {
> +              "current": 30,
> +              "enabled": true,
> +              "supported": true},
> +            "desc": "FakePortDesc",
> +            "id": {
> +              "type": "ifname",
> +              "value": "GigabitEthernet1/0/1"},
> +            "mfs": 10240,
> +            "power": {
> +              "enabled": false,
> +              "paircontrol": false,
> +              "supported": true},
> +            "ttl": 121},
> +          "ppvid": [
> +            {
> +              "enabled": false,
> +              "supported": true}],
> +          "vlan": [
> +            {
> +              "pvid": true,
> +              "value": "VLAN1",
> +              "vlan-id": 1},
> +            {
> +              "pvid": false,
> +              "value": "VLAN2",
> +              "vlan-id": 2}]}},
> +      {
> +        "p1": {
> +          "chassis": {
> +            "FakeSystemName1": {
> +              "capability": [
> +                {
> +                  "enabled": true,
> +                  "type": "Bridge"},
> +                {
> +                  "enabled": false,
> +                  "type": "Router"}],
> +              "descr": "FakeSystemDesc1",
> +              "id": {
> +                "type": "ip",
> +                "value": "5.6.7.8"},
> +              "mgmt-iface": [
> +                100,
> +                200],
> +              "mgmt-ip": [
> +                "11.22.33.44",
> +                "fe00::1"]}},
> +          "port": {
> +            "auto-negotiation": {
> +              "current": 30,
> +              "enabled": true,
> +              "supported": true},
> +            "desc": "FakePortDesc1",
> +            "id": {
> +              "type": "ifname",
> +              "value": "GigabitEthernet1/0/2"},
> +            "mfs": 10240,
> +            "power": {
> +              "enabled": false,
> +              "paircontrol": false,
> +              "supported": true},
> +            "ttl": 100},
> +          "ppvid": [
> +            {
> +              "enabled": true,
> +              "ppvid": 15,
> +              "supported": true}],
> +          "vlan": [
> +            {
> +              "pvid": false,
> +              "value": "VLAN2",
> +              "vlan-id": 2},
> +            {
> +              "pvid": true,
> +              "vlan-id": 1}]}}]}}]
> +])
> +
> +AT_CLEANUP
> \ No newline at end of file

Please, add the line break at the end.

> diff --git a/tests/testsuite.at b/tests/testsuite.at
> index 9d77a9f51..f80656076 100644
> --- a/tests/testsuite.at
> +++ b/tests/testsuite.at
> @@ -66,6 +66,7 @@ m4_include([tests/ofproto-dpif.at])
>  m4_include([tests/bridge.at])
>  m4_include([tests/netdev-type.at])
>  m4_include([tests/ovsdb.at])
> +m4_include([tests/ovs-lldp.at])
>  m4_include([tests/ovs-vsctl.at])
>  m4_include([tests/stp.at])
>  m4_include([tests/rstp.at])

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