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 ip_addr == n.neighbor.ip_address and \
  24            is_static == (n.neighbor.flags & e.IP_API_NEIGHBOR_FLAG_STATIC):
  25             if mac:
  26                 if mac == str(n.neighbor.mac_address):
  27                     return True
  28             else:
  29                 return True
  30     return False
  31
  32
  33 class VppNeighbor(VppObject):
  34     """
  35     ARP Entry
  36     """
  37
  38     def __init__(self, test, sw_if_index, mac_addr, nbr_addr,
  39                  is_static=False, is_no_fib_entry=False):
  40         self._test = test
  41         self.sw_if_index = sw_if_index
  42         self.mac_addr = mac_addr
  43         self.nbr_addr = nbr_addr
  44
  45         e = VppEnum.vl_api_ip_neighbor_flags_t
  46         self.flags = e.IP_API_NEIGHBOR_FLAG_NONE
  47         if is_static:
  48             self.flags |= e.IP_API_NEIGHBOR_FLAG_STATIC
  49         if is_no_fib_entry:
  50             self.flags |= e.IP_API_NEIGHBOR_FLAG_NO_FIB_ENTRY
  51
  52     def add_vpp_config(self):
  53         r = self._test.vapi.ip_neighbor_add_del(
  54             self.sw_if_index,
  55             self.mac_addr,
  56             self.nbr_addr,
  57             is_add=1,
  58             flags=self.flags)
  59         self.stats_index = r.stats_index
  60         self._test.registry.register(self, self._test.logger)
  61         return self
  62
  63     def remove_vpp_config(self):
  64         self._test.vapi.ip_neighbor_add_del(
  65             self.sw_if_index,
  66             self.mac_addr,
  67             self.nbr_addr,
  68             is_add=0,
  69             flags=self.flags)
  70
  71     def is_static(self):
  72         e = VppEnum.vl_api_ip_neighbor_flags_t
  73         return (self.flags & e.IP_API_NEIGHBOR_FLAG_STATIC)
  74
  75     def query_vpp_config(self):
  76         return find_nbr(self._test,
  77                         self.sw_if_index,
  78                         self.nbr_addr,
  79                         self.is_static())
  80
  81     def object_id(self):
  82         return ("%d:%s" % (self.sw_if_index, self.nbr_addr))
  83
  84     def get_stats(self):
  85         c = self._test.statistics.get_counter("/net/adjacency")
  86         return c[0][self.stats_index]