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"""
IP Types
"""
import logging
from ipaddress import ip_address
from socket import AF_INET, AF_INET6
from vpp_papi import VppEnum
try:
text_type = unicode
except NameError:
text_type = str
_log = logging.getLogger(__name__)
class DpoProto:
DPO_PROTO_IP4 = 0
DPO_PROTO_IP6 = 1
DPO_PROTO_MPLS = 2
DPO_PROTO_ETHERNET = 3
DPO_PROTO_BIER = 4
DPO_PROTO_NSH = 5
INVALID_INDEX = 0xffffffff
def get_dpo_proto(addr):
if ip_address(addr).version == 6:
return DpoProto.DPO_PROTO_IP6
else:
return DpoProto.DPO_PROTO_IP4
class VppIpAddressUnion():
def __init__(self, addr):
self.addr = addr
self.ip_addr = ip_address(text_type(self.addr))
def encode(self):
if self.version == 6:
return {'ip6': self.ip_addr}
else:
return {'ip4': self.ip_addr}
@property
def version(self):
return self.ip_addr.version
@property
def address(self):
return self.addr
@property
def length(self):
return self.ip_addr.max_prefixlen
@property
def bytes(self):
return self.ip_addr.packed
def __eq__(self, other):
if isinstance(other, self.__class__):
return self.ip_addr == other.ip_addr
elif hasattr(other, "ip4") and hasattr(other, "ip6"):
# vl_api_address_union_t
if 4 == self.version:
return self.ip_addr == other.ip4
else:
return self.ip_addr == other.ip6
else:
raise Exception("Comparing VppIpAddressUnions:%s"
" with incomparable type: %s",
self, other)
def __ne__(self, other):
return not (self == other)
def __str__(self):
return str(self.ip_addr)
class VppIpMPrefix():
def __init__(self, saddr, gaddr, glen):
self.saddr = saddr
self.gaddr = gaddr
self.glen = glen
if ip_address(self.saddr).version != \
ip_address(self.gaddr).version:
raise ValueError('Source and group addresses must be of the '
'same address family.')
def encode(self):
return {
'af': ip_address(self.gaddr).vapi_af,
'grp_address': {
ip_address(self.gaddr).vapi_af_name: self.gaddr
},
'src_address': {
ip_address(self.saddr).vapi_af_name: self.saddr
},
'grp_address_length': self.glen,
}
@property
def length(self):
return self.glen
@property
def version(self):
return ip_address(self.gaddr).version
def __str__(self):
return "(%s,%s)/%d" % (self.saddr, self.gaddr, self.glen)
def __eq__(self, other):
if isinstance(other, self.__class__):
return (self.glen == other.glen and
self.saddr == other.gaddr and
self.saddr == other.saddr)
elif (hasattr(other, "grp_address_length") and
hasattr(other, "grp_address") and
hasattr(other, "src_address")):
# vl_api_mprefix_t
if 4 == self.version:
return (self.glen == other.grp_address_length and
self.gaddr == str(other.grp_address.ip4) and
self.saddr == str(other.src_address.ip4))
else:
return (self.glen == other.grp_address_length and
self.gaddr == str(other.grp_address.ip6) and
self.saddr == str(other.src_address.ip6))
return NotImplemented
|
