test/vpp_neighbor.py

   1 """
   2   Neighbour Entries
   3
   4   object abstractions for ARP and ND
   5 """
   6
   7 from ipaddress import ip_address
   8 from vpp_object import VppObject
   9 from vpp_papi import mac_pton, VppEnum
  10 try:
  11     text_type = unicode
  12 except NameError:
  13     text_type = str
  14
  15
  16 def find_nbr(test, sw_if_index, nbr_addr, is_static=0, mac=None):
  17     ip_addr = ip_address(text_type(nbr_addr))
  18     e = VppEnum.vl_api_ip_neighbor_flags_t
  19     nbrs = test.vapi.ip_neighbor_dump(sw_if_index=sw_if_index,
  20                                       af=ip_addr.vapi_af)
  21
  22     for n in nbrs:
  23         if sw_if_index == n.neighbor.sw_if_index and \
  24            ip_addr == n.neighbor.ip_address and \
  25            is_static == (n.neighbor.flags & e.IP_API_NEIGHBOR_FLAG_STATIC):
  26             if mac:
  27                 if mac == str(n.neighbor.mac_address):
  28                     return True
  29             else:
  30                 return True
  31     return False
  32
  33
  34 class VppNeighbor(VppObject):
  35     """
  36     ARP Entry
  37     """
  38
  39     def __init__(self, test, sw_if_index, mac_addr, nbr_addr,
  40                  is_static=False, is_no_fib_entry=False):
  41         self._test = test
  42         self.sw_if_index = sw_if_index
  43         self.mac_addr = mac_addr
  44         self.nbr_addr = nbr_addr
  45
  46         e = VppEnum.vl_api_ip_neighbor_flags_t
  47         self.flags = e.IP_API_NEIGHBOR_FLAG_NONE
  48         if is_static:
  49             self.flags |= e.IP_API_NEIGHBOR_FLAG_STATIC
  50         if is_no_fib_entry:
  51             self.flags |= e.IP_API_NEIGHBOR_FLAG_NO_FIB_ENTRY
  52
  53     def add_vpp_config(self):
  54         r = self._test.vapi.ip_neighbor_add_del(
  55             self.sw_if_index,
  56             self.mac_addr,
  57             self.nbr_addr,
  58             is_add=1,
  59             flags=self.flags)
  60         self.stats_index = r.stats_index
  61         self._test.registry.register(self, self._test.logger)
  62         return self
  63
  64     def remove_vpp_config(self):
  65         self._test.vapi.ip_neighbor_add_del(
  66             self.sw_if_index,
  67             self.mac_addr,
  68             self.nbr_addr,
  69             is_add=0,
  70             flags=self.flags)
  71
  72     def is_static(self):
  73         e = VppEnum.vl_api_ip_neighbor_flags_t
  74         return (self.flags & e.IP_API_NEIGHBOR_FLAG_STATIC)
  75
  76     def query_vpp_config(self):
  77         return find_nbr(self._test,
  78                         self.sw_if_index,
  79                         self.nbr_addr,
  80                         self.is_static())
  81
  82     def object_id(self):
  83         return ("%d:%s" % (self.sw_if_index, self.nbr_addr))
  84
  85     def get_stats(self):
  86         c = self._test.statistics["/net/adjacency"]
  87         return c[0][self.stats_index]