dc2a250f06
allow routes that are local and connected to be added via the API. this emulates the addition of a second address in the same subnet added to an interface. Change-Id: Ib18a08c26956be9a07b3360664210c8cf6734c84 Signed-off-by: Neale Ranns <nranns@cisco.com> (cherry picked from commit 7425f9289bdc17d330044b0df0fc31cdeeca626b)
795 lines
26 KiB
Python
795 lines
26 KiB
Python
"""
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IP Routes
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object abstractions for representing IP routes in VPP
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"""
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from vpp_object import *
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from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
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from vpp_ip import *
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# from vnet/vnet/mpls/mpls_types.h
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MPLS_IETF_MAX_LABEL = 0xfffff
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MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1
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class MRouteItfFlags:
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MFIB_ITF_FLAG_NONE = 0
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MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
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MFIB_ITF_FLAG_ACCEPT = 2
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MFIB_ITF_FLAG_FORWARD = 4
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MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
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MFIB_ITF_FLAG_INTERNAL_COPY = 16
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class MRouteEntryFlags:
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MFIB_ENTRY_FLAG_NONE = 0
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MFIB_ENTRY_FLAG_SIGNAL = 1
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MFIB_ENTRY_FLAG_DROP = 2
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MFIB_ENTRY_FLAG_CONNECTED = 4
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MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8
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class MplsLspMode:
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PIPE = 0
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UNIFORM = 1
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def ip_to_dpo_proto(addr):
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if addr.version is 6:
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return DpoProto.DPO_PROTO_IP6
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else:
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return DpoProto.DPO_PROTO_IP4
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def find_route(test, ip_addr, len, table_id=0, inet=AF_INET):
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if inet == AF_INET:
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s = 4
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routes = test.vapi.ip_fib_dump()
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else:
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s = 16
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routes = test.vapi.ip6_fib_dump()
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route_addr = inet_pton(inet, ip_addr)
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for e in routes:
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if route_addr == e.address[:s] \
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and len == e.address_length \
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and table_id == e.table_id:
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return True
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return False
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def find_mroute(test, grp_addr, src_addr, grp_addr_len,
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table_id=0, inet=AF_INET):
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if inet == AF_INET:
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s = 4
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routes = test.vapi.ip_mfib_dump()
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else:
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s = 16
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routes = test.vapi.ip6_mfib_dump()
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gaddr = inet_pton(inet, grp_addr)
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saddr = inet_pton(inet, src_addr)
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for e in routes:
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if gaddr == e.grp_address[:s] \
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and grp_addr_len == e.address_length \
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and saddr == e.src_address[:s] \
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and table_id == e.table_id:
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return True
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return False
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def find_mpls_route(test, table_id, label, eos_bit, paths=None):
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dump = test.vapi.mpls_fib_dump()
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for e in dump:
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if label == e.label \
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and eos_bit == e.eos_bit \
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and table_id == e.table_id:
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if not paths:
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return True
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else:
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if (len(paths) != len(e.path)):
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return False
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for i in range(len(paths)):
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if (paths[i] != e.path[i]):
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return False
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return True
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return False
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def fib_interface_ip_prefix(test, address, length, sw_if_index):
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vp = VppIpPrefix(address, length)
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addrs = test.vapi.ip_address_dump(sw_if_index, is_ipv6=vp.is_ip6)
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if vp.is_ip6:
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n = 16
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else:
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n = 4
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for a in addrs:
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if a.prefix_length == length and \
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a.sw_if_index == sw_if_index and \
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a.ip[:n] == vp.bytes:
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return True
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return False
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class VppIpTable(VppObject):
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def __init__(self,
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test,
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table_id,
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is_ip6=0):
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self._test = test
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self.table_id = table_id
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self.is_ip6 = is_ip6
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def add_vpp_config(self):
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self._test.vapi.ip_table_add_del(
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self.table_id,
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is_ipv6=self.is_ip6,
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is_add=1)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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self._test.vapi.ip_table_add_del(
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self.table_id,
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is_ipv6=self.is_ip6,
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is_add=0)
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def query_vpp_config(self):
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if self.table_id == 0:
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# the default table always exists
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return False
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# find the default route
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return find_route(self._test,
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"::" if self.is_ip6 else "0.0.0.0",
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0,
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self.table_id,
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inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)
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def __str__(self):
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return self.object_id()
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def object_id(self):
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return ("table-%s-%d" %
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("v6" if self.is_ip6 == 1 else "v4",
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self.table_id))
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class VppIpInterfaceAddress(VppObject):
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def __init__(self, test, intf, addr, len):
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self._test = test
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self.intf = intf
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self.prefix = VppIpPrefix(addr, len)
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def add_vpp_config(self):
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self._test.vapi.sw_interface_add_del_address(
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self.intf.sw_if_index,
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self.prefix.bytes,
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self.prefix.length,
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is_add=1,
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is_ipv6=self.prefix.is_ip6)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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self._test.vapi.sw_interface_add_del_address(
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self.intf.sw_if_index,
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self.prefix.bytes,
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self.prefix.length,
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is_add=0,
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is_ipv6=self.prefix.is_ip6)
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def query_vpp_config(self):
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return fib_interface_ip_prefix(self._test,
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self.prefix.address,
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self.prefix.length,
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self.intf.sw_if_index)
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def __str__(self):
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return self.object_id()
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def object_id(self):
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return "interface-ip-%s-%s" % (self.intf, self.prefix)
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class VppIpInterfaceBind(VppObject):
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def __init__(self, test, intf, table):
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self._test = test
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self.intf = intf
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self.table = table
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def add_vpp_config(self):
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if self.table.is_ip6:
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self.intf.set_table_ip6(self.table.table_id)
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else:
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self.intf.set_table_ip4(self.table.table_id)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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if 0 == self.table.table_id:
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return
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if self.table.is_ip6:
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self.intf.set_table_ip6(0)
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else:
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self.intf.set_table_ip4(0)
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def query_vpp_config(self):
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if 0 == self.table.table_id:
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return False
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return self._test.vapi.sw_interface_get_table(
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self.intf.sw_if_index,
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self.table.is_ip6).vrf_id == self.table.table_id
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def __str__(self):
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return self.object_id()
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def object_id(self):
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return "interface-bind-%s-%s" % (self.intf, self.table)
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class VppMplsLabel(object):
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def __init__(self, value, mode=MplsLspMode.PIPE, ttl=64, exp=0):
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self.value = value
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self.mode = mode
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self.ttl = ttl
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self.exp = exp
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def encode(self):
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is_uniform = 0 if self.mode is MplsLspMode.PIPE else 1
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return {'label': self.value,
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'ttl': self.ttl,
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'exp': self.exp,
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'is_uniform': is_uniform}
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return (self.value == other.value and
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self.ttl == other.ttl and
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self.exp == other.exp and
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self.mode == other.mode)
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elif hasattr(other, 'label'):
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return (self.value == other.label and
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self.ttl == other.ttl and
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self.exp == other.exp and
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(self.mode == MplsLspMode.UNIFORM) == other.is_uniform)
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else:
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return False
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def __ne__(self, other):
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return not (self == other)
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class VppRoutePath(object):
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def __init__(
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self,
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nh_addr,
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nh_sw_if_index,
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nh_table_id=0,
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labels=[],
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nh_via_label=MPLS_LABEL_INVALID,
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rpf_id=0,
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is_interface_rx=0,
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is_resolve_host=0,
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is_resolve_attached=0,
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is_source_lookup=0,
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is_udp_encap=0,
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is_dvr=0,
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next_hop_id=0xffffffff,
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proto=DpoProto.DPO_PROTO_IP4):
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self.nh_itf = nh_sw_if_index
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self.nh_table_id = nh_table_id
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self.nh_via_label = nh_via_label
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self.nh_labels = labels
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self.weight = 1
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self.rpf_id = rpf_id
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self.proto = proto
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if self.proto is DpoProto.DPO_PROTO_IP6:
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self.nh_addr = inet_pton(AF_INET6, nh_addr)
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elif self.proto is DpoProto.DPO_PROTO_IP4:
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self.nh_addr = inet_pton(AF_INET, nh_addr)
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else:
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self.nh_addr = inet_pton(AF_INET6, "::")
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self.is_resolve_host = is_resolve_host
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self.is_resolve_attached = is_resolve_attached
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self.is_interface_rx = is_interface_rx
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self.is_source_lookup = is_source_lookup
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self.is_rpf_id = 0
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if rpf_id != 0:
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self.is_rpf_id = 1
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self.nh_itf = rpf_id
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self.is_udp_encap = is_udp_encap
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self.next_hop_id = next_hop_id
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self.is_dvr = is_dvr
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def encode_labels(self):
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lstack = []
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for l in self.nh_labels:
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if type(l) == VppMplsLabel:
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lstack.append(l.encode())
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else:
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lstack.append({'label': l,
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'ttl': 255})
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return lstack
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def encode(self):
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return {'next_hop': self.nh_addr,
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'weight': 1,
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'afi': 0,
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'preference': 0,
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'table_id': self.nh_table_id,
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'next_hop_id': self.next_hop_id,
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'sw_if_index': self.nh_itf,
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'afi': self.proto,
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'is_udp_encap': self.is_udp_encap,
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'n_labels': len(self.nh_labels),
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'label_stack': self.encode_labels()}
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return self.nh_addr == other.nh_addr
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elif hasattr(other, 'sw_if_index'):
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# vl_api_fib_path_t
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if (len(self.nh_labels) != other.n_labels):
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return False
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for i in range(len(self.nh_labels)):
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if (self.nh_labels[i] != other.label_stack[i]):
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return False
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return self.nh_itf == other.sw_if_index
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else:
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return False
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def __ne__(self, other):
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return not (self == other)
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class VppMRoutePath(VppRoutePath):
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def __init__(self, nh_sw_if_index, flags,
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nh=None,
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proto=DpoProto.DPO_PROTO_IP4,
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bier_imp=0):
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if not nh:
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nh = "::" if proto is DpoProto.DPO_PROTO_IP6 else "0.0.0.0"
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super(VppMRoutePath, self).__init__(nh,
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nh_sw_if_index,
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proto=proto)
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self.nh_i_flags = flags
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self.bier_imp = bier_imp
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class VppIpRoute(VppObject):
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"""
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IP Route
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"""
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def __init__(self, test, dest_addr,
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dest_addr_len, paths, table_id=0, is_ip6=0, is_local=0,
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is_unreach=0, is_prohibit=0, is_drop=0):
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self._test = test
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self.paths = paths
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self.dest_addr_len = dest_addr_len
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self.table_id = table_id
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self.is_ip6 = is_ip6
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self.is_local = is_local
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self.is_unreach = is_unreach
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self.is_prohibit = is_prohibit
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self.is_drop = is_drop
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self.dest_addr_p = dest_addr
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if is_ip6:
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self.dest_addr = inet_pton(AF_INET6, dest_addr)
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else:
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self.dest_addr = inet_pton(AF_INET, dest_addr)
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def modify(self, paths, is_local=0,
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is_unreach=0, is_prohibit=0):
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self.paths = paths
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self.is_local = is_local
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self.is_unreach = is_unreach
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self.is_prohibit = is_prohibit
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def add_vpp_config(self):
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if self.is_unreach or self.is_prohibit or self.is_drop:
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r = self._test.vapi.ip_add_del_route(
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self.dest_addr,
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self.dest_addr_len,
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inet_pton(AF_INET6, "::"),
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0xffffffff,
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is_local=self.is_local,
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is_unreach=self.is_unreach,
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is_prohibit=self.is_prohibit,
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is_drop=self.is_drop,
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table_id=self.table_id,
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is_ipv6=self.is_ip6)
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else:
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for path in self.paths:
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lstack = path.encode_labels()
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r = self._test.vapi.ip_add_del_route(
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self.dest_addr,
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self.dest_addr_len,
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path.nh_addr,
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path.nh_itf,
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table_id=self.table_id,
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next_hop_out_label_stack=lstack,
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next_hop_n_out_labels=len(lstack),
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next_hop_via_label=path.nh_via_label,
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next_hop_table_id=path.nh_table_id,
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next_hop_id=path.next_hop_id,
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is_ipv6=self.is_ip6,
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is_dvr=path.is_dvr,
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is_local=self.is_local,
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is_resolve_host=path.is_resolve_host,
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is_resolve_attached=path.is_resolve_attached,
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is_source_lookup=path.is_source_lookup,
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is_udp_encap=path.is_udp_encap,
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is_multipath=1 if len(self.paths) > 1 else 0)
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self.stats_index = r.stats_index
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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if self.is_unreach or self.is_prohibit or self.is_drop:
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self._test.vapi.ip_add_del_route(
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self.dest_addr,
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self.dest_addr_len,
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inet_pton(AF_INET6, "::"),
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0xffffffff,
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is_local=self.is_local,
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is_unreach=self.is_unreach,
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is_prohibit=self.is_prohibit,
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is_add=0,
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table_id=self.table_id,
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is_ipv6=self.is_ip6)
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else:
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for path in self.paths:
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self._test.vapi.ip_add_del_route(
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self.dest_addr,
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self.dest_addr_len,
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path.nh_addr,
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path.nh_itf,
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table_id=self.table_id,
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next_hop_table_id=path.nh_table_id,
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next_hop_via_label=path.nh_via_label,
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next_hop_id=path.next_hop_id,
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is_add=0,
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is_udp_encap=path.is_udp_encap,
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is_ipv6=self.is_ip6,
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is_dvr=path.is_dvr)
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def query_vpp_config(self):
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return find_route(self._test,
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self.dest_addr_p,
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self.dest_addr_len,
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self.table_id,
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inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)
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def __str__(self):
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return self.object_id()
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def object_id(self):
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return ("%d:%s/%d"
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% (self.table_id,
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self.dest_addr_p,
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self.dest_addr_len))
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def get_stats_to(self):
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c = self._test.statistics.get_counter("/net/route/to")
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return c[0][self.stats_index]
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|
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def get_stats_via(self):
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c = self._test.statistics.get_counter("/net/route/via")
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return c[0][self.stats_index]
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|
|
|
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class VppIpMRoute(VppObject):
|
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"""
|
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IP Multicast Route
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"""
|
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|
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def __init__(self, test, src_addr, grp_addr,
|
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grp_addr_len, e_flags, paths, table_id=0,
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rpf_id=0, is_ip6=0):
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self._test = test
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self.paths = paths
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self.grp_addr_len = grp_addr_len
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|
self.table_id = table_id
|
|
self.e_flags = e_flags
|
|
self.is_ip6 = is_ip6
|
|
self.rpf_id = rpf_id
|
|
|
|
self.grp_addr_p = grp_addr
|
|
self.src_addr_p = src_addr
|
|
if is_ip6:
|
|
self.grp_addr = inet_pton(AF_INET6, grp_addr)
|
|
self.src_addr = inet_pton(AF_INET6, src_addr)
|
|
else:
|
|
self.grp_addr = inet_pton(AF_INET, grp_addr)
|
|
self.src_addr = inet_pton(AF_INET, src_addr)
|
|
|
|
def add_vpp_config(self):
|
|
for path in self.paths:
|
|
r = self._test.vapi.ip_mroute_add_del(self.src_addr,
|
|
self.grp_addr,
|
|
self.grp_addr_len,
|
|
self.e_flags,
|
|
path.proto,
|
|
path.nh_itf,
|
|
path.nh_addr,
|
|
path.nh_i_flags,
|
|
bier_imp=path.bier_imp,
|
|
rpf_id=self.rpf_id,
|
|
table_id=self.table_id,
|
|
is_ipv6=self.is_ip6)
|
|
self.stats_index = r.stats_index
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
for path in self.paths:
|
|
self._test.vapi.ip_mroute_add_del(self.src_addr,
|
|
self.grp_addr,
|
|
self.grp_addr_len,
|
|
self.e_flags,
|
|
path.proto,
|
|
path.nh_itf,
|
|
path.nh_addr,
|
|
path.nh_i_flags,
|
|
table_id=self.table_id,
|
|
bier_imp=path.bier_imp,
|
|
is_add=0,
|
|
is_ipv6=self.is_ip6)
|
|
|
|
def update_entry_flags(self, flags):
|
|
self.e_flags = flags
|
|
self._test.vapi.ip_mroute_add_del(self.src_addr,
|
|
self.grp_addr,
|
|
self.grp_addr_len,
|
|
self.e_flags,
|
|
0,
|
|
0xffffffff,
|
|
"",
|
|
0,
|
|
table_id=self.table_id,
|
|
is_ipv6=self.is_ip6)
|
|
|
|
def update_rpf_id(self, rpf_id):
|
|
self.rpf_id = rpf_id
|
|
self._test.vapi.ip_mroute_add_del(self.src_addr,
|
|
self.grp_addr,
|
|
self.grp_addr_len,
|
|
self.e_flags,
|
|
0,
|
|
0xffffffff,
|
|
"",
|
|
0,
|
|
rpf_id=self.rpf_id,
|
|
table_id=self.table_id,
|
|
is_ipv6=self.is_ip6)
|
|
|
|
def update_path_flags(self, itf, flags):
|
|
for path in self.paths:
|
|
if path.nh_itf == itf:
|
|
path.nh_i_flags = flags
|
|
break
|
|
self._test.vapi.ip_mroute_add_del(self.src_addr,
|
|
self.grp_addr,
|
|
self.grp_addr_len,
|
|
self.e_flags,
|
|
path.proto,
|
|
path.nh_itf,
|
|
path.nh_addr,
|
|
path.nh_i_flags,
|
|
table_id=self.table_id,
|
|
is_ipv6=self.is_ip6)
|
|
|
|
def query_vpp_config(self):
|
|
return find_mroute(self._test,
|
|
self.grp_addr_p,
|
|
self.src_addr_p,
|
|
self.grp_addr_len,
|
|
self.table_id,
|
|
inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)
|
|
|
|
def __str__(self):
|
|
return self.object_id()
|
|
|
|
def object_id(self):
|
|
if self.is_ip6:
|
|
return ("%d:(%s,%s/%d)"
|
|
% (self.table_id,
|
|
inet_ntop(AF_INET6, self.src_addr),
|
|
inet_ntop(AF_INET6, self.grp_addr),
|
|
self.grp_addr_len))
|
|
else:
|
|
return ("%d:(%s,%s/%d)"
|
|
% (self.table_id,
|
|
inet_ntop(AF_INET, self.src_addr),
|
|
inet_ntop(AF_INET, self.grp_addr),
|
|
self.grp_addr_len))
|
|
|
|
def get_stats(self):
|
|
c = self._test.statistics.get_counter("/net/mroute")
|
|
return c[0][self.stats_index]
|
|
|
|
|
|
class VppMFibSignal(object):
|
|
def __init__(self, test, route, interface, packet):
|
|
self.route = route
|
|
self.interface = interface
|
|
self.packet = packet
|
|
self.test = test
|
|
|
|
def compare(self, signal):
|
|
self.test.assertEqual(self.interface, signal.sw_if_index)
|
|
self.test.assertEqual(self.route.table_id, signal.table_id)
|
|
self.test.assertEqual(self.route.grp_addr_len,
|
|
signal.grp_address_len)
|
|
for i in range(self.route.grp_addr_len / 8):
|
|
self.test.assertEqual(self.route.grp_addr[i],
|
|
signal.grp_address[i])
|
|
if (self.route.grp_addr_len > 32):
|
|
for i in range(4):
|
|
self.test.assertEqual(self.route.src_addr[i],
|
|
signal.src_address[i])
|
|
|
|
|
|
class VppMplsIpBind(VppObject):
|
|
"""
|
|
MPLS to IP Binding
|
|
"""
|
|
|
|
def __init__(self, test, local_label, dest_addr, dest_addr_len,
|
|
table_id=0, ip_table_id=0, is_ip6=0):
|
|
self._test = test
|
|
self.dest_addr_len = dest_addr_len
|
|
self.dest_addr = dest_addr
|
|
self.local_label = local_label
|
|
self.table_id = table_id
|
|
self.ip_table_id = ip_table_id
|
|
self.is_ip6 = is_ip6
|
|
if is_ip6:
|
|
self.dest_addrn = inet_pton(AF_INET6, dest_addr)
|
|
else:
|
|
self.dest_addrn = inet_pton(AF_INET, dest_addr)
|
|
|
|
def add_vpp_config(self):
|
|
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
|
|
self.dest_addrn,
|
|
self.dest_addr_len,
|
|
table_id=self.table_id,
|
|
ip_table_id=self.ip_table_id,
|
|
is_ip4=(self.is_ip6 == 0))
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
|
|
self.dest_addrn,
|
|
self.dest_addr_len,
|
|
table_id=self.table_id,
|
|
ip_table_id=self.ip_table_id,
|
|
is_bind=0,
|
|
is_ip4=(self.is_ip6 == 0))
|
|
|
|
def query_vpp_config(self):
|
|
dump = self._test.vapi.mpls_fib_dump()
|
|
for e in dump:
|
|
if self.local_label == e.label \
|
|
and self.table_id == e.table_id:
|
|
return True
|
|
return False
|
|
|
|
def __str__(self):
|
|
return self.object_id()
|
|
|
|
def object_id(self):
|
|
return ("%d:%s binds %d:%s/%d"
|
|
% (self.table_id,
|
|
self.local_label,
|
|
self.ip_table_id,
|
|
self.dest_addr,
|
|
self.dest_addr_len))
|
|
|
|
|
|
class VppMplsTable(VppObject):
|
|
|
|
def __init__(self,
|
|
test,
|
|
table_id):
|
|
self._test = test
|
|
self.table_id = table_id
|
|
|
|
def add_vpp_config(self):
|
|
self._test.vapi.mpls_table_add_del(
|
|
self.table_id,
|
|
is_add=1)
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
self._test.vapi.mpls_table_add_del(
|
|
self.table_id,
|
|
is_add=0)
|
|
|
|
def query_vpp_config(self):
|
|
# find the default route
|
|
dump = self._test.vapi.mpls_fib_dump()
|
|
if len(dump):
|
|
return True
|
|
return False
|
|
|
|
def __str__(self):
|
|
return self.object_id()
|
|
|
|
def object_id(self):
|
|
return ("table-mpls-%d" % (self.table_id))
|
|
|
|
|
|
class VppMplsRoute(VppObject):
|
|
"""
|
|
MPLS Route/LSP
|
|
"""
|
|
|
|
def __init__(self, test, local_label, eos_bit, paths, table_id=0,
|
|
is_multicast=0):
|
|
self._test = test
|
|
self.paths = paths
|
|
self.local_label = local_label
|
|
self.eos_bit = eos_bit
|
|
self.table_id = table_id
|
|
self.is_multicast = is_multicast
|
|
|
|
def add_vpp_config(self):
|
|
is_multipath = len(self.paths) > 1
|
|
for path in self.paths:
|
|
lstack = path.encode_labels()
|
|
|
|
r = self._test.vapi.mpls_route_add_del(
|
|
self.local_label,
|
|
self.eos_bit,
|
|
path.proto,
|
|
path.nh_addr,
|
|
path.nh_itf,
|
|
is_multicast=self.is_multicast,
|
|
is_multipath=is_multipath,
|
|
table_id=self.table_id,
|
|
is_interface_rx=path.is_interface_rx,
|
|
is_rpf_id=path.is_rpf_id,
|
|
next_hop_out_label_stack=lstack,
|
|
next_hop_n_out_labels=len(lstack),
|
|
next_hop_via_label=path.nh_via_label,
|
|
next_hop_table_id=path.nh_table_id)
|
|
self.stats_index = r.stats_index
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
for path in self.paths:
|
|
self._test.vapi.mpls_route_add_del(self.local_label,
|
|
self.eos_bit,
|
|
path.proto,
|
|
path.nh_addr,
|
|
path.nh_itf,
|
|
is_rpf_id=path.is_rpf_id,
|
|
table_id=self.table_id,
|
|
is_add=0)
|
|
|
|
def query_vpp_config(self):
|
|
return find_mpls_route(self._test, self.table_id,
|
|
self.local_label, self.eos_bit)
|
|
|
|
def __str__(self):
|
|
return self.object_id()
|
|
|
|
def object_id(self):
|
|
return ("%d:%s/%d"
|
|
% (self.table_id,
|
|
self.local_label,
|
|
20+self.eos_bit))
|
|
|
|
def get_stats_to(self):
|
|
c = self._test.statistics.get_counter("/net/route/to")
|
|
return c[0][self.stats_index]
|
|
|
|
def get_stats_via(self):
|
|
c = self._test.statistics.get_counter("/net/route/via")
|
|
return c[0][self.stats_index]
|