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"""
SRv6 LocalSIDs
object abstractions for representing SRv6 localSIDs in VPP
"""
from vpp_object import VppObject
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
class SRv6LocalSIDBehaviors():
# from src/vnet/srv6/sr.h
SR_BEHAVIOR_END = 1
SR_BEHAVIOR_X = 2
SR_BEHAVIOR_T = 3
SR_BEHAVIOR_D_FIRST = 4 # Unused. Separator in between regular and D
SR_BEHAVIOR_DX2 = 5
SR_BEHAVIOR_DX6 = 6
SR_BEHAVIOR_DX4 = 7
SR_BEHAVIOR_DT6 = 8
SR_BEHAVIOR_DT4 = 9
SR_BEHAVIOR_END_UN_PERF = 10
SR_BEHAVIOR_END_UN = 11
SR_BEHAVIOR_LAST = 12 # Must always be the last one
class SRv6PolicyType():
# from src/vnet/srv6/sr.h
SR_POLICY_TYPE_DEFAULT = 0
SR_POLICY_TYPE_SPRAY = 1
class SRv6PolicySteeringTypes():
# from src/vnet/srv6/sr.h
SR_STEER_L2 = 2
SR_STEER_IPV4 = 4
SR_STEER_IPV6 = 6
class VppSRv6LocalSID(VppObject):
"""
SRv6 LocalSID
"""
def __init__(self, test, localsid, behavior, nh_addr,
end_psp, sw_if_index, vlan_index, fib_table):
self._test = test
self.localsid = localsid
self.behavior = behavior
self.nh_addr = nh_addr
self.end_psp = end_psp
self.sw_if_index = sw_if_index
self.vlan_index = vlan_index
self.fib_table = fib_table
self._configured = False
def add_vpp_config(self):
self._test.vapi.sr_localsid_add_del(
localsid=self.localsid,
behavior=self.behavior,
nh_addr=self.nh_addr,
is_del=0,
end_psp=self.end_psp,
sw_if_index=self.sw_if_index,
vlan_index=self.vlan_index,
fib_table=self.fib_table)
self._configured = True
def remove_vpp_config(self):
self._test.vapi.sr_localsid_add_del(
localsid=self.localsid,
behavior=self.behavior,
nh_addr=self.nh_addr,
is_del=1,
end_psp=self.end_psp,
sw_if_index=self.sw_if_index,
vlan_index=self.vlan_index,
fib_table=self.fib_table)
self._configured = False
def query_vpp_config(self):
# sr_localsids_dump API is disabled
# use _configured flag for now
return self._configured
def object_id(self):
return ("%d;%s,%d"
% (self.fib_table,
self.localsid,
self.behavior))
class VppSRv6Policy(VppObject):
"""
SRv6 Policy
"""
def __init__(self, test, bsid,
is_encap, sr_type, weight, fib_table,
segments, source):
self._test = test
self.bsid = bsid
self.is_encap = is_encap
self.sr_type = sr_type
self.weight = weight
self.fib_table = fib_table
self.segments = segments
self.n_segments = len(segments)
# source not passed to API
# self.source = inet_pton(AF_INET6, source)
self.source = source
self._configured = False
def add_vpp_config(self):
self._test.vapi.sr_policy_add(
bsid=self.bsid,
weight=self.weight,
is_encap=self.is_encap,
is_spray=self.sr_type,
fib_table=self.fib_table,
sids={'num_sids': self.n_segments, 'sids': self.segments})
self._configured = True
def remove_vpp_config(self):
self._test.vapi.sr_policy_del(
self.bsid)
self._configured = False
def query_vpp_config(self):
# no API to query SR Policies
# use _configured flag for now
return self._configured
def object_id(self):
return ("%d;%s-><%s>;%d"
% (self.sr_type,
self.bsid,
','.join(self.segments),
self.is_encap))
class VppSRv6Steering(VppObject):
"""
SRv6 Steering
"""
def __init__(self, test,
bsid,
prefix,
mask_width,
traffic_type,
sr_policy_index,
table_id,
sw_if_index):
self._test = test
self.bsid = bsid
self.prefix = prefix
self.mask_width = mask_width
self.traffic_type = traffic_type
self.sr_policy_index = sr_policy_index
self.sw_if_index = sw_if_index
self.table_id = table_id
self._configured = False
def add_vpp_config(self):
self._test.vapi.sr_steering_add_del(
is_del=0,
bsid=self.bsid,
sr_policy_index=self.sr_policy_index,
table_id=self.table_id,
prefix={'address': self.prefix, 'len': self.mask_width},
sw_if_index=self.sw_if_index,
traffic_type=self.traffic_type)
self._configured = True
def remove_vpp_config(self):
self._test.vapi.sr_steering_add_del(
is_del=1,
bsid=self.bsid,
sr_policy_index=self.sr_policy_index,
table_id=self.table_id,
prefix={'address': self.prefix, 'len': self.mask_width},
sw_if_index=self.sw_if_index,
traffic_type=self.traffic_type)
self._configured = False
def query_vpp_config(self):
# no API to query steering entries
# use _configured flag for now
return self._configured
def object_id(self):
return ("%d;%d;%s/%d->%s"
% (self.table_id,
self.traffic_type,
self.prefix,
self.mask_width,
self.bsid))
|
