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:
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(unicode(self.addr))
+ self.ip_addr = ip_address(text_type(self.addr))
def encode(self):
- if self.version is 6:
- return {'ip6': self.ip_addr.packed}
+ if self.version == 6:
+ return {'ip6': self.ip_addr}
else:
- return {'ip4': self.ip_addr.packed}
+ return {'ip4': self.ip_addr}
@property
def version(self):
@property
def length(self):
- if self.version is 6:
- return 128
- else:
- return 32
+ return self.ip_addr.max_prefixlen
@property
def bytes(self):
return self.ip_addr == other.ip_addr
elif hasattr(other, "ip4") and hasattr(other, "ip6"):
# vl_api_address_union_t
- if 4 is self.version:
- return self.ip_addr.packed == other.ip4
+ if 4 == self.version:
+ return self.ip_addr == other.ip4
else:
- return self.ip_addr.packed == other.ip6
+ return self.ip_addr == other.ip6
else:
- raise Exception("Comparing VppIpAddresUnions:%s"
- " with unknown type: %s" %
- (self, other))
+ raise Exception("Comparing VppIpAddressUnions:%s"
+ " with incomparable type: %s",
+ self, other)
- return False
+ def __ne__(self, other):
+ return not (self == other)
+ def __str__(self):
+ return str(self.ip_addr)
-class VppIpAddress():
- def __init__(self, addr):
- self.addr = VppIpAddressUnion(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):
- if self.addr.version is 6:
- return {
+ if 6 == self.version:
+ prefix = {
'af': VppEnum.vl_api_address_family_t.ADDRESS_IP6,
- 'un': self.addr.encode()
+ 'grp_address': {
+ 'ip6': self.gaddr
+ },
+ 'src_address': {
+ 'ip6': self.saddr
+ },
+ 'grp_address_length': self.glen,
}
else:
- return {
+ prefix = {
'af': VppEnum.vl_api_address_family_t.ADDRESS_IP4,
- 'un': self.addr.encode()
+ 'grp_address': {
+ 'ip4': self.gaddr
+ },
+ 'src_address': {
+ 'ip4': self.saddr
+ },
+ 'grp_address_length': self.glen,
}
-
- def __eq__(self, other):
- if isinstance(other, self.__class__):
- return self.addr == other.addr
- elif hasattr(other, "af") and hasattr(other, "un"):
- # a vp_api_address_t
- if 4 is self.version:
- return other.af == \
- VppEnum.vl_api_address_family_t.ADDRESS_IP4 and \
- other.un == self.addr
- else:
- return other.af == \
- VppEnum.vl_api_address_family_t.ADDRESS_IP6 and \
- other.un == self.addr
- else:
- raise Exception("Comparing VppIpAddress:%s with unknown type: %s" %
- (self, other))
- return False
-
- def __ne__(self, other):
- return not (self == other)
-
- def __str__(self):
- return self.address
-
- @property
- def bytes(self):
- return self.addr.bytes
-
- @property
- def bytes(self):
- return self.addr.bytes
-
- @property
- def address(self):
- return self.addr.address
+ return prefix
@property
def length(self):
- return self.addr.length
+ return self.glen
@property
def version(self):
- return self.addr.version
-
- @property
- def is_ip6(self):
- return (self.version == 6)
-
- @property
- def af(self):
- if self.version == 6:
- return AF_INET6
- else:
- return AF_INET
-
- @property
- def dpo_proto(self):
- if self.version is 6:
- return DpoProto.DPO_PROTO_IP6
- else:
- return DpoProto.DPO_PROTO_IP4
-
-
-class VppIpPrefix():
- def __init__(self, addr, len):
- self.addr = VppIpAddress(addr)
- self.len = len
-
- def __eq__(self, other):
- if self.addr == other.addr and self.len == other.len:
- return True
- return False
-
- def encode(self):
- return {'address': self.addr.encode(),
- 'address_length': self.len}
-
- @property
- def address(self):
- return self.addr.address
-
- @property
- def bytes(self):
- return self.addr.bytes
-
- @property
- def length(self):
- return self.len
-
- @property
- def is_ip6(self):
- return self.addr.is_ip6
+ return ip_address(self.gaddr).version
def __str__(self):
- return "%s/%d" % (self.address, self.length)
+ return "(%s,%s)/%d" % (self.saddr, self.gaddr, self.glen)
def __eq__(self, other):
if isinstance(other, self.__class__):
- return (self.len == other.len and self.addr == other.addr)
- elif hasattr(other, "address") and hasattr(other, "address_length"):
- # vl_api_prefix_t
- return self.len == other.address_length and \
- self.addr == other.address
- else:
- raise Exception("Comparing VppIpPrefix:%s with unknown type: %s" %
+ 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))
+ raise Exception("Comparing VppIpMPrefix:%s with unknown type: %s" %
(self, other))
return False
-
-
-class VppIp6Prefix():
- def __init__(self, prefix, prefixlen):
- self.ip_prefix = ip_address(unicode(prefix))
- self.prefixlen = prefixlen
-
- def encode(self):
- return {'prefix': self.ip_prefix.packed,
- 'len': self.prefixlen}
-
-
-class VppIp4Prefix(VppIp6Prefix):
- pass
-
-
-class VppIpMPrefix():
- def __init__(self, saddr, gaddr, len):
- self.saddr = saddr
- self.gaddr = gaddr
- self.len = len
- self.ip_saddr = ip_address(unicode(self.saddr))
- self.ip_gaddr = ip_address(unicode(self.gaddr))
-
- def encode(self):
-
- if 6 is self.ip_saddr.version:
- prefix = {
- 'af': VppEnum.vl_api_address_family_t.ADDRESS_IP6,
- 'grp_address': {'ip6': self.ip_gaddr.packed},
- 'src_address': {'ip6': self.ip_saddr.packed},
- 'grp_address_length': self.len,
- }
- else:
- prefix = {
- 'af': VppEnum.vl_api_address_family_t.ADDRESS_IP4,
- 'grp_address': {'ip4': self.ip_gaddr.packed},
- 'src_address': {'ip4': self.ip_saddr.packed},
- 'grp_address_length': self.len,
- }
- return prefix
Code Review / vpp.git / blobdiff