Zebra¶

Zebra protocol parser/serializer

Zebra Protocol is used to communicate with the zebra daemon.

class os_ken.lib.packet.zebra.InterfaceLinkParams(lp_status, te_metric, max_bw, max_reserved_bw, unreserved_bw, admin_group, remote_as, remote_ip, average_delay, min_delay, max_delay, delay_var, pkt_loss, residual_bw, average_bw, utilized_bw)¶

Interface Link Parameters class for if_link_params structure.

class os_ken.lib.packet.zebra.NextHopBlackhole(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_BLACKHOLE type.

class os_ken.lib.packet.zebra.NextHopIFIndex(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IFINDEX type.

class os_ken.lib.packet.zebra.NextHopIFName(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IFNAME type.

class os_ken.lib.packet.zebra.NextHopIPv4(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV4 type.

class os_ken.lib.packet.zebra.NextHopIPv4IFIndex(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV4_IFINDEX type.

class os_ken.lib.packet.zebra.NextHopIPv4IFName(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV4_IFNAME type.

class os_ken.lib.packet.zebra.NextHopIPv6(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV6 type.

class os_ken.lib.packet.zebra.NextHopIPv6IFIndex(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV6_IFINDEX type.

class os_ken.lib.packet.zebra.NextHopIPv6IFName(ifindex=None, ifname=None, addr=None, type_=None)¶

Nexthop class for ZEBRA_NEXTHOP_IPV6_IFNAME type.

class os_ken.lib.packet.zebra.RegisteredNexthop(connected, family, prefix)¶

Unit of ZEBRA_NEXTHOP_REGISTER message body.

class os_ken.lib.packet.zebra.ZebraBfdClientRegister(pid)¶

Message body class for FRR_ZEBRA_BFD_CLIENT_REGISTER.

class os_ken.lib.packet.zebra.ZebraBfdDestinationDeregister(pid, dst_family, dst_prefix, multi_hop, src_family, src_prefix, multi_hop_count=None, ifname=None)¶

Message body class for FRR_ZEBRA_BFD_DEST_DEREGISTER.

class os_ken.lib.packet.zebra.ZebraBfdDestinationRegister(pid, dst_family, dst_prefix, min_rx_timer, min_tx_timer, detect_mult, multi_hop, src_family, src_prefix, multi_hop_count=None, ifname=None)¶

Message body class for FRR_ZEBRA_BFD_DEST_REGISTER.

class os_ken.lib.packet.zebra.ZebraBfdDestinationReply¶

Message body class for FRR_ZEBRA_BFD_DEST_REPLAY.

class os_ken.lib.packet.zebra.ZebraBfdDestinationUpdate(pid, dst_family, dst_prefix, min_rx_timer, min_tx_timer, detect_mult, multi_hop, src_family, src_prefix, multi_hop_count=None, ifname=None)¶

Message body class for FRR_ZEBRA_BFD_DEST_UPDATE.

class os_ken.lib.packet.zebra.ZebraHello(route_type, instance=None)¶

Message body class for ZEBRA_HELLO.

class os_ken.lib.packet.zebra.ZebraIPv4ImportLookup(prefix, metric=None, nexthops=None, from_zebra=False)¶

Message body class for ZEBRA_IPV4_IMPORT_LOOKUP.

class os_ken.lib.packet.zebra.ZebraIPv4NexthopAdd(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV4_NEXTHOP_ADD.

class os_ken.lib.packet.zebra.ZebraIPv4NexthopDelete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV4_NEXTHOP_DELETE.

class os_ken.lib.packet.zebra.ZebraIPv4NexthopLookup(addr, metric=None, nexthops=None)¶

Message body class for ZEBRA_IPV4_NEXTHOP_LOOKUP.

class os_ken.lib.packet.zebra.ZebraIPv4NexthopLookupMRib(addr, distance=None, metric=None, nexthops=None)¶

Message body class for ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB.

class os_ken.lib.packet.zebra.ZebraIPv4RouteAdd(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for ZEBRA_IPV4_ROUTE_ADD.

class os_ken.lib.packet.zebra.ZebraIPv4RouteDelete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for ZEBRA_IPV4_ROUTE_DELETE.

class os_ken.lib.packet.zebra.ZebraIPv4RouteIPv6NexthopAdd(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD.

class os_ken.lib.packet.zebra.ZebraIPv6ImportLookup(prefix, metric=None, nexthops=None, from_zebra=False)¶

Message body class for ZEBRA_IPV6_IMPORT_LOOKUP.

class os_ken.lib.packet.zebra.ZebraIPv6NexthopAdd(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV6_NEXTHOP_ADD.

class os_ken.lib.packet.zebra.ZebraIPv6NexthopDelete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV6_NEXTHOP_DELETE.

class os_ken.lib.packet.zebra.ZebraIPv6NexthopLookup(addr, metric=None, nexthops=None)¶

Message body class for ZEBRA_IPV6_NEXTHOP_LOOKUP.

class os_ken.lib.packet.zebra.ZebraIPv6RouteAdd(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for ZEBRA_IPV6_ROUTE_ADD.

class os_ken.lib.packet.zebra.ZebraIPv6RouteDelete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for ZEBRA_IPV6_ROUTE_DELETE.

class os_ken.lib.packet.zebra.ZebraImportCheckUpdate(family, prefix, distance=None, metric=None, nexthops=None)¶

Message body class for FRR_ZEBRA_IMPORT_CHECK_UPDATE.

class os_ken.lib.packet.zebra.ZebraImportRouteRegister(nexthops)¶

Message body class for FRR_ZEBRA_IMPORT_ROUTE_REGISTER.

class os_ken.lib.packet.zebra.ZebraImportRouteUnregister(nexthops)¶

Message body class for FRR_ZEBRA_IMPORT_ROUTE_UNREGISTER.

class os_ken.lib.packet.zebra.ZebraInterfaceAdd(ifname=None, ifindex=None, status=None, if_flags=None, ptm_enable=None, ptm_status=None, metric=None, speed=None, ifmtu=None, ifmtu6=None, bandwidth=None, ll_type=None, hw_addr_len=0, hw_addr=None, link_params=None)¶

Message body class for ZEBRA_INTERFACE_ADD.

class os_ken.lib.packet.zebra.ZebraInterfaceAddressAdd(ifindex, ifc_flags, family, prefix, dest)¶

Message body class for ZEBRA_INTERFACE_ADDRESS_ADD.

class os_ken.lib.packet.zebra.ZebraInterfaceAddressDelete(ifindex, ifc_flags, family, prefix, dest)¶

Message body class for ZEBRA_INTERFACE_ADDRESS_DELETE.

class os_ken.lib.packet.zebra.ZebraInterfaceBfdDestinationUpdate(ifindex, dst_family, dst_prefix, status, src_family, src_prefix)¶

Message body class for FRR_ZEBRA_INTERFACE_BFD_DEST_UPDATE.

class os_ken.lib.packet.zebra.ZebraInterfaceDelete(ifname=None, ifindex=None, status=None, if_flags=None, ptm_enable=None, ptm_status=None, metric=None, speed=None, ifmtu=None, ifmtu6=None, bandwidth=None, ll_type=None, hw_addr_len=0, hw_addr=None, link_params=None)¶

Message body class for ZEBRA_INTERFACE_DELETE.

class os_ken.lib.packet.zebra.ZebraInterfaceDisableRadv(ifindex, interval)¶

Message body class for FRR_ZEBRA_INTERFACE_DISABLE_RADV.

class os_ken.lib.packet.zebra.ZebraInterfaceDown(ifname=None, ifindex=None, status=None, if_flags=None, ptm_enable=None, ptm_status=None, metric=None, speed=None, ifmtu=None, ifmtu6=None, bandwidth=None, ll_type=None, hw_addr_len=0, hw_addr=None, link_params=None)¶

Message body class for ZEBRA_INTERFACE_DOWN.

class os_ken.lib.packet.zebra.ZebraInterfaceEnableRadv(ifindex, interval)¶

Message body class for FRR_ZEBRA_INTERFACE_ENABLE_RADV.

class os_ken.lib.packet.zebra.ZebraInterfaceLinkParams(ifindex, link_params)¶

Message body class for ZEBRA_INTERFACE_LINK_PARAMS.

class os_ken.lib.packet.zebra.ZebraInterfaceNbrAddressAdd(ifindex, family, prefix)¶

Message body class for FRR_ZEBRA_INTERFACE_NBR_ADDRESS_ADD.

class os_ken.lib.packet.zebra.ZebraInterfaceNbrAddressDelete(ifindex, family, prefix)¶

Message body class for FRR_ZEBRA_INTERFACE_NBR_ADDRESS_DELETE.

class os_ken.lib.packet.zebra.ZebraInterfaceUp(ifname=None, ifindex=None, status=None, if_flags=None, ptm_enable=None, ptm_status=None, metric=None, speed=None, ifmtu=None, ifmtu6=None, bandwidth=None, ll_type=None, hw_addr_len=0, hw_addr=None, link_params=None)¶

Message body class for ZEBRA_INTERFACE_UP.

class os_ken.lib.packet.zebra.ZebraInterfaceVrfUpdate(ifindex, vrf_id)¶

Message body class for FRR_ZEBRA_INTERFACE_VRF_UPDATE.

class os_ken.lib.packet.zebra.ZebraMessage(length=None, version=3, vrf_id=0, command=None, body=None)¶

Zebra protocol parser/serializer class.

An instance has the following attributes at least. Most of them are same to the on-wire counterparts but in host byte order. __init__ takes the corresponding args in this order.

Attribute	Description
length	Total packet length including this header. The minimum length is 3 bytes for version 0 messages, 6 bytes for version 1/2 messages and 8 bytes for version 3 messages.
version	Version number of the Zebra protocol message. To instantiate messages with other than the default version, version must be specified.
vrf_id	VRF ID for the route contained in message. Not present in version 0/1/2 messages in the on-wire structure, and always 0 for theses version.
command	Zebra Protocol command, which denotes message type.
body	Messages body. An instance of subclass of _ZebraMessageBody named like "Zebra + <message name>" (e.g., ZebraHello). Or None if message does not contain any body.

Note

To instantiate Zebra messages, command can be omitted when the valid body is specified.

>>> from os_ken.lib.packet import zebra
>>> zebra.ZebraMessage(body=zebra.ZebraHello())
ZebraMessage(body=ZebraHello(route_type=14),command=23,
length=None,version=3,vrf_id=0)

On the other hand, if body is omitted, command must be specified.

>>> zebra.ZebraMessage(command=zebra.ZEBRA_INTERFACE_ADD)
ZebraMessage(body=None,command=1,length=None,version=3,vrf_id=0)

classmethod parser(buf)¶

Decode a protocol header.

This method is used only when decoding a packet.

Decode a protocol header at offset 0 in bytearray buf. Returns the following three objects.

• An object to describe the decoded header.
• A packet_base.PacketBase subclass appropriate for the rest of the packet. None when the rest of the packet should be considered as raw payload.
• The rest of packet.

serialize(_payload=None, _prev=None)¶

Encode a protocol header.

This method is used only when encoding a packet.

Encode a protocol header. Returns a bytearray which contains the header.

payload is the rest of the packet which will immediately follow this header.

prev is a packet_base.PacketBase subclass for the outer protocol header. prev is None if the current header is the outer-most. For example, prev is ipv4 or ipv6 for tcp.serialize.

class os_ken.lib.packet.zebra.ZebraMplsLabelsAdd(route_type, family, prefix, gate_addr, ifindex=None, distance=None, in_label=None, out_label=None)¶

Message body class for FRR_ZEBRA_MPLS_LABELS_ADD.

class os_ken.lib.packet.zebra.ZebraMplsLabelsDelete(route_type, family, prefix, gate_addr, ifindex=None, distance=None, in_label=None, out_label=None)¶

Message body class for FRR_ZEBRA_MPLS_LABELS_DELETE.

class os_ken.lib.packet.zebra.ZebraNexthopRegister(nexthops)¶

Message body class for ZEBRA_NEXTHOP_REGISTER.

class os_ken.lib.packet.zebra.ZebraNexthopUnregister(nexthops)¶

Message body class for ZEBRA_NEXTHOP_UNREGISTER.

class os_ken.lib.packet.zebra.ZebraNexthopUpdate(family, prefix, distance=None, metric=None, nexthops=None)¶

Message body class for ZEBRA_NEXTHOP_UPDATE.

class os_ken.lib.packet.zebra.ZebraRedistributeAdd(route_type, afi=None, instance=None)¶

Message body class for ZEBRA_REDISTRIBUTE_ADD.

class os_ken.lib.packet.zebra.ZebraRedistributeDefaultAdd(route_type, afi=None, instance=None)¶

Message body class for ZEBRA_REDISTRIBUTE_DEFAULT_ADD.

class os_ken.lib.packet.zebra.ZebraRedistributeDefaultDelete(route_type, afi=None, instance=None)¶

Message body class for ZEBRA_REDISTRIBUTE_DEFAULT_DELETE.

class os_ken.lib.packet.zebra.ZebraRedistributeDelete(route_type, afi=None, instance=None)¶

Message body class for ZEBRA_REDISTRIBUTE_DELETE.

class os_ken.lib.packet.zebra.ZebraRedistributeIPv4Add(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV4_ROUTE_ADD.

class os_ken.lib.packet.zebra.ZebraRedistributeIPv4Delete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_IPV4_ROUTE_DELETE.

class os_ken.lib.packet.zebra.ZebraRedistributeIPv6Add(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_REDISTRIBUTE_IPV6_ADD.

class os_ken.lib.packet.zebra.ZebraRedistributeIPv6Delete(route_type, flags, message, safi=None, prefix=None, src_prefix=None, nexthops=None, ifindexes=None, distance=None, metric=None, mtu=None, tag=None, instance=None, from_zebra=False)¶

Message body class for FRR_ZEBRA_REDISTRIBUTE_IPV6_DEL.

class os_ken.lib.packet.zebra.ZebraRouterIDAdd¶

Message body class for ZEBRA_ROUTER_ID_ADD.

class os_ken.lib.packet.zebra.ZebraRouterIDDelete¶

Message body class for ZEBRA_ROUTER_ID_DELETE.

class os_ken.lib.packet.zebra.ZebraRouterIDUpdate(family, prefix)¶

Message body class for ZEBRA_ROUTER_ID_UPDATE.

class os_ken.lib.packet.zebra.ZebraUnknownMessage(buf)¶

Message body class for Unknown command.

class os_ken.lib.packet.zebra.ZebraVrfAdd(vrf_name)¶

Message body class for FRR_ZEBRA_VRF_ADD.

class os_ken.lib.packet.zebra.ZebraVrfDelete(vrf_name)¶

Message body class for FRR_ZEBRA_VRF_DELETE.

class os_ken.lib.packet.zebra.ZebraVrfUnregister¶

Message body class for ZEBRA_VRF_UNREGISTER.

os_ken.lib.packet.zebra.zebra¶

alias of os_ken.lib.packet.zebra.ZebraMessage