2020-05-31 22:10:26 +02:00
|
|
|
import grpc
|
|
|
|
|
|
|
|
|
|
from backend.gobgp_api import gobgp_pb2_grpc, attribute_pb2
|
|
|
|
|
from backend.gobgp_api.gobgp_pb2 import TableType, Family, ListPeerRequest, ListPathRequest
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def get_bgp_data(gobgp_host):
|
|
|
|
|
_timeout = 10
|
|
|
|
|
|
|
|
|
|
channel = grpc.insecure_channel('{}:50051'.format(gobgp_host))
|
|
|
|
|
stub = gobgp_pb2_grpc.GobgpApiStub(channel)
|
|
|
|
|
data = []
|
|
|
|
|
|
|
|
|
|
peers = stub.ListPeer(ListPeerRequest(), _timeout)
|
|
|
|
|
for peer in peers:
|
|
|
|
|
entry = {
|
|
|
|
|
"local_id": peer.peer.state.router_id,
|
|
|
|
|
"local_as": peer.peer.conf.peer_as,
|
|
|
|
|
"peers": [], # we don't export any peers
|
|
|
|
|
"routes": [],
|
|
|
|
|
}
|
|
|
|
|
neigh = peer.peer.conf.neighbor_address
|
|
|
|
|
|
|
|
|
|
for af in [Family.Afi.AFI_IP, Family.Afi.AFI_IP6]:
|
|
|
|
|
req = ListPathRequest(
|
|
|
|
|
name=neigh,
|
|
|
|
|
table_type=TableType.ADJ_IN,
|
|
|
|
|
family=Family(afi=af, safi=Family.Safi.SAFI_UNICAST),
|
|
|
|
|
sort_type=ListPathRequest.SortType.PREFIX)
|
|
|
|
|
rib = stub.ListPath(req)
|
|
|
|
|
for dest in rib:
|
|
|
|
|
prefix = dest.destination.prefix
|
|
|
|
|
for path in dest.destination.paths:
|
|
|
|
|
as_path = []
|
|
|
|
|
next_hop = "<unknown>" # currently here to prevent error from NOT NULL constraint
|
|
|
|
|
|
|
|
|
|
# parse attrs
|
|
|
|
|
for pattr in path.pattrs:
|
|
|
|
|
if pattr.type_url == "type.googleapis.com/gobgpapi.NextHopAttribute":
|
|
|
|
|
nh = attribute_pb2.NextHopAttribute()
|
|
|
|
|
nh.ParseFromString(pattr.value)
|
|
|
|
|
next_hop = nh.next_hop
|
|
|
|
|
elif pattr.type_url == "type.googleapis.com/gobgpapi.AsPathAttribute":
|
|
|
|
|
asp = attribute_pb2.AsPathAttribute()
|
|
|
|
|
asp.ParseFromString(pattr.value)
|
|
|
|
|
for seg in asp.segments:
|
|
|
|
|
if seg.type == 2:
|
|
|
|
|
as_path = seg.numbers
|
|
|
|
|
elif pattr.type_url == "type.googleapis.com/gobgpapi.MpReachNLRIAttribute":
|
|
|
|
|
mpreach = attribute_pb2.MpReachNLRIAttribute()
|
|
|
|
|
mpreach.ParseFromString(pattr.value)
|
|
|
|
|
next_hop = mpreach.next_hops[0]
|
|
|
|
|
|
|
|
|
|
if not as_path:
|
|
|
|
|
continue
|
|
|
|
|
|
|
|
|
|
route = {
|
|
|
|
|
"prefix": prefix,
|
|
|
|
|
"path": as_path,
|
|
|
|
|
"nexthop": next_hop,
|
|
|
|
|
}
|
2020-06-10 03:09:49 +02:00
|
|
|
entry["routes"].append(route)
|
2020-05-31 22:10:26 +02:00
|
|
|
|
|
|
|
|
data.append(entry)
|
|
|
|
|
return data
|
