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"""
Neighbour Entries
object abstractions for ARP and ND
"""
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
from vpp_object import *
from util import mactobinary
def find_nbr(test, sw_if_index, ip_addr, is_static=0, inet=AF_INET, mac=None):
nbrs = test.vapi.ip_neighbor_dump(sw_if_index,
is_ipv6=1 if AF_INET6 == inet else 0)
if inet == AF_INET:
s = 4
else:
s = 16
nbr_addr = inet_pton(inet, ip_addr)
for n in nbrs:
if nbr_addr == n.ip_address[:s] \
and is_static == n.is_static:
if mac:
if n.mac_address == mactobinary(mac):
return True
else:
return True
return False
class VppNeighbor(VppObject):
"""
ARP Entry
"""
def __init__(self, test, sw_if_index, mac_addr, nbr_addr,
af=AF_INET, is_static=False, is_no_fib_entry=0):
self._test = test
self.sw_if_index = sw_if_index
self.mac_addr = mactobinary(mac_addr)
self.af = af
self.is_static = is_static
self.is_no_fib_entry = is_no_fib_entry
self.nbr_addr = nbr_addr
self.nbr_addr_n = inet_pton(af, nbr_addr)
def add_vpp_config(self):
r = self._test.vapi.ip_neighbor_add_del(
self.sw_if_index,
self.mac_addr,
self.nbr_addr_n,
is_add=1,
is_ipv6=1 if AF_INET6 == self.af else 0,
is_static=self.is_static,
is_no_adj_fib=self.is_no_fib_entry)
self.stats_index = r.stats_index
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.ip_neighbor_add_del(
self.sw_if_index,
self.mac_addr,
self.nbr_addr_n,
is_ipv6=1 if AF_INET6 == self.af else 0,
is_add=0,
is_static=self.is_static)
def query_vpp_config(self):
return find_nbr(self._test,
self.sw_if_index,
self.nbr_addr,
self.is_static,
self.af)
def __str__(self):
return self.object_id()
def object_id(self):
return ("%d:%s" % (self.sw_if_index, self.nbr_addr))
def get_stats(self):
c = self._test.statistics.get_counter("/net/adjacency")
return c[0][self.stats_index]
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