本文整理汇总了Python中exabgp.bgp.message.update.nlri.cidr.CIDR类的典型用法代码示例。如果您正苦于以下问题：Python CIDR类的具体用法？Python CIDR怎么用？Python CIDR使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了CIDR类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
def __init__(self,afi,safi,packed,mask,nexthop,action):
self.labels = Labels.NOLABEL
self.rd = RouteDistinguisher.NORD
self.nexthop = IP.unpack(nexthop) if nexthop else NoIP
self.action = action
NLRI.__init__(self,afi,safi)
CIDR.__init__(self,packed,mask)示例2: __init__
def __init__ (self, afi, safi, packed, mask, nexthop, action,path=None):
self.path_info = PathInfo.NOPATH if path is None else path
self.labels = Labels.NOLABEL
self.rd = RouteDistinguisher.NORD
self.nexthop = IP.unpack(nexthop) if nexthop else NoNextHop
self.action = action
NLRI.__init__(self,afi,safi)
CIDR.__init__(self,packed,mask)示例3: pack
def pack (self, addpath=None):
if not self.has_label():
if addpath:
return self.path_info.pack() + CIDR.pack(self)
return CIDR.pack(self)
length = len(self.labels)*8 + len(self.rd)*8 + self.mask
if addpath:
return self.path_info.pack() + chr(length) + self.labels.pack() + self.rd.pack() + CIDR.packed_ip(self)
return chr(length) + self.labels.pack() + self.rd.pack() + CIDR.packed_ip(self)示例4: __eq__
def __eq__ (self, other):
return \
NLRI.__eq__(self, other) and \
CIDR.__eq__(self, other) and \
self.path_info == other.path_info and \
self.labels == other.labels and \
self.rd == other.rd and \
self.nexthop == other.nexthop and \
self.action == other.action示例5: unpack_nlri
def unpack_nlri (cls, afi, safi, bgp, action, addpath):
nlri = cls(afi,safi,action)
if addpath:
nlri.path_info = PathInfo(bgp[:4])
bgp = bgp[4:]
mask = ordinal(bgp[0])
bgp = bgp[1:]
_, rd_size = Family.size.get((afi, safi), (0, 0))
rd_mask = rd_size * 8
if safi.has_label():
labels = []
while mask - rd_mask >= 24:
label = int(unpack('!L',character(0) + bgp[:3])[0])
bgp = bgp[3:]
mask -= 24 # 3 bytes
# The last 4 bits are the bottom of Stack
# The last bit is set for the last label
labels.append(label >> 4)
# This is a route withdrawal
if label == 0x800000 and action == IN.WITHDRAWN:
break
# This is a next-hop
if label == 0x000000:
break
if label & 1:
break
nlri.labels = Labels(labels)
if rd_size:
mask -= rd_mask # the route distinguisher
rd = bgp[:rd_size]
bgp = bgp[rd_size:]
nlri.rd = RouteDistinguisher(rd)
if mask < 0:
raise Notify(3,10,'invalid length in NLRI prefix')
if not bgp and mask:
raise Notify(3,10,'not enough data for the mask provided to decode the NLRI')
size = CIDR.size(mask)
if len(bgp) < size:
raise Notify(3,10,'could not decode route with AFI %d and SAFI %d' % (afi,safi))
network,bgp = bgp[:size],bgp[size:]
nlri.cidr = CIDR(network + padding(IP.length(afi)-size),mask)
return nlri,bgp示例6: _nlri
def _nlri (afi, safi, bgp, action, addpath):
labels = []
rd = ''
if addpath:
path_identifier = bgp[:4]
bgp = bgp[4:]
else:
path_identifier = None
mask = ord(bgp[0])
bgp = bgp[1:]
if SAFI(safi).has_label():
while bgp and mask >= 8:
label = int(unpack('!L',chr(0) + bgp[:3])[0])
bgp = bgp[3:]
mask -= 24 # 3 bytes
# The last 4 bits are the bottom of Stack
# The last bit is set for the last label
labels.append(label >> 4)
# This is a route withdrawal
if label == 0x800000 and action == IN.WITHDRAWN:
break
# This is a next-hop
if label == 0x000000:
break
if label & 1:
break
if SAFI(safi).has_rd():
mask -= 8*8 # the 8 bytes of the route distinguisher
rd = bgp[:8]
bgp = bgp[8:]
if mask < 0:
raise Notify(3,10,'invalid length in NLRI prefix')
if not bgp and mask:
raise Notify(3,10,'not enough data for the mask provided to decode the NLRI')
size = CIDR.size(mask)
if len(bgp) < size:
raise Notify(3,10,'could not decode route with AFI %d sand SAFI %d' % (afi,safi))
network,bgp = bgp[:size],bgp[size:]
padding = '\0'*(IP.length(afi)-size)
prefix = network + padding
return labels,rd,path_identifier,mask,size,prefix,bgp示例7: IPrefix4
class IPrefix4 (IPrefix,IComponent,IPv4):
# not used, just present for simplying the nlri generation
operations = 0x0
# NAME
def __init__ (self,raw,netmask):
self.nlri = CIDR(raw,netmask)
def pack (self):
raw = self.nlri.pack()
return "%s%s" % (chr(self.ID),raw)
def __str__ (self):
return str(self.nlri)示例8: IPrefix6
class IPrefix6 (IPrefix,IComponent,IPv6):
# not used, just present for simplying the nlri generation
operations = 0x0
# NAME
def __init__ (self,raw,netmask,offset):
self.nlri = CIDR(raw,netmask)
self.offset = offset
def pack (self):
raw = self.nlri.packed_ip()
return "%s%s%s%s" % (chr(self.ID),chr(self.nlri.mask),chr(self.offset),raw)
def __str__ (self):
return "%s/%s" % (self.nlri,self.offset)示例9: _nlri
def _nlri(afi, safi, bgp, action):
labels = []
rd = ""
mask = ord(bgp[0])
bgp = bgp[1:]
if SAFI(safi).has_label():
while bgp and mask >= 8:
label = int(unpack("!L", chr(0) + bgp[:3])[0])
bgp = bgp[3:]
mask -= 24 # 3 bytes
# The last 4 bits are the bottom of Stack
# The last bit is set for the last label
labels.append(label >> 4)
# This is a route withdrawal
if label == 0x800000 and action == IN.withdrawn:
break
# This is a next-hop
if label == 0x000000:
break
if label & 1:
break
if SAFI(safi).has_rd():
mask -= 8 * 8 # the 8 bytes of the route distinguisher
rd = bgp[:8]
bgp = bgp[8:]
if mask < 0:
raise Notify(3, 10, "invalid length in NLRI prefix")
if not bgp and mask:
raise Notify(3, 10, "not enough data for the mask provided to decode the NLRI")
size = CIDR.size(mask)
if len(bgp) < size:
raise Notify(3, 10, "could not decode route with AFI %d sand SAFI %d" % (afi, safi))
network, bgp = bgp[:size], bgp[size:]
padding = "\0" * (IP.length(afi) - size)
prefix = network + padding
return labels, rd, mask, size, prefix, bgp示例10: IPrefix4
class IPrefix4 (IPrefix,IComponent,IPv4):
# Must be defined in subclasses
CODE = -1
NAME = ''
# not used, just present for simplying the nlri generation
operations = 0x0
def __init__ (self, raw, netmask):
self.nlri = CIDR(raw,netmask)
def pack (self):
raw = self.nlri.pack()
# ID is defined in subclasses
return "%s%s" % (chr(self.ID),raw) # pylint: disable=E1101
def __str__ (self):
return str(self.nlri)示例11: IPrefix6
class IPrefix6 (IPrefix,IComponent,IPv6):
# Must be defined in subclasses
CODE = -1
NAME = ''
# not used, just present for simplying the nlri generation
operations = 0x0
def __init__ (self, raw, netmask, offset):
self.nlri = CIDR(raw,netmask)
self.offset = offset
def pack (self):
# ID is defined in subclasses
return "%s%s%s%s" % (chr(self.ID),chr(self.nlri.mask),chr(self.offset),self.nlri.classless()) # pylint: disable=E1101
def __str__ (self):
return "%s/%s" % (self.nlri,self.offset)示例12: IPrefix4
class IPrefix4 (IPrefix,IComponent,IPv4):
# Must be defined in subclasses
CODE = -1
NAME = ''
# not used, just present for simplying the nlri generation
operations = 0x0
def __init__ (self, raw, netmask):
self.cidr = CIDR(raw,netmask)
def pack (self):
raw = self.cidr.pack_nlri()
# ID is defined in subclasses
return "%s%s" % (chr(self.ID),raw) # pylint: disable=E1101
def __str__ (self):
return str(self.cidr)
@classmethod
def make (cls, bgp):
prefix,mask = CIDR.decode(AFI.ipv4,bgp)
return cls(prefix,mask), bgp[CIDR.size(mask)+1:]示例13: IPrefix6
class IPrefix6 (IPrefix,IComponent,IPv6):
# Must be defined in subclasses
CODE = -1
NAME = ''
# not used, just present for simplying the nlri generation
operations = 0x0
def __init__ (self, raw, netmask, offset):
self.cidr = CIDR(raw,netmask)
self.offset = offset
def pack (self):
# ID is defined in subclasses
return "%s%s%s%s" % (chr(self.ID),chr(self.cidr.mask),chr(self.offset),self.cidr.pack_ip()) # pylint: disable=E1101
def __str__ (self):
return "%s/%s" % (self.cidr,self.offset)
@classmethod
def make (cls, bgp):
offset = ord(bgp[1])
prefix,mask = CIDR.decode(AFI.ipv6,bgp[0]+bgp[2:])
return cls(prefix,mask,offset), bgp[CIDR.size(mask)+2:]示例14: __eq__
def __eq__ (self, other):
return \
NLRI.__eq__(self, other) and \
CIDR.__eq__(self, other) and \
self.path_info == other.path_info and \
self.nexthop == other.nexthop示例15: __len__
def __len__ (self):
return CIDR.__len__(self) + len(self.labels) + len(self.rd)