class Open (Message):
ID = Message.CODE.OPEN
TYPE = chr(Message.CODE.OPEN)
def __init__ (self, version, asn, router_id, capabilities, hold_time):
self.version = Version(version)
self.asn = ASN(asn)
self.hold_time = HoldTime(hold_time)
self.router_id = RouterID(router_id)
self.capabilities = capabilities
def message (self):
return self._message("%s%s%s%s%s" % (
self.version.pack(),
self.asn.trans(),
self.hold_time.pack(),
self.router_id.pack(),
self.capabilities.pack()
))
def __str__ (self):
return "OPEN version=%d asn=%d hold_time=%s router_id=%s capabilities=[%s]" % (self.version, self.asn, self.hold_time, self.router_id,self.capabilities)
@classmethod
def unpack_message (cls, data, _):
version = ord(data[0])
if version != 4:
# Only version 4 is supported nowdays..
raise Notify(2,1,data[0])
asn = unpack('!H',data[1:3])[0]
hold_time = unpack('!H',data[3:5])[0]
numeric = unpack('!L',data[5:9])[0]
router_id = "%d.%d.%d.%d" % (numeric >> 24,(numeric >> 16) & 0xFF,(numeric >> 8) & 0xFF,numeric & 0xFF)
capabilities = Capabilities.unpack(data[9:])
return cls(version,asn,router_id,capabilities,hold_time)
class Open(Message):
ID = Message.CODE.OPEN
TYPE = chr(Message.CODE.OPEN)
def __init__(self, version, asn, router_id, capabilities, hold_time):
self.version = Version(version)
self.asn = ASN(asn)
self.hold_time = HoldTime(hold_time)
self.router_id = RouterID(router_id)
self.capabilities = capabilities
def message(self, negotiated=None):
return self._message(
"%s%s%s%s%s" %
(self.version.pack(), self.asn.trans(), self.hold_time.pack(),
self.router_id.pack(), self.capabilities.pack()))
def __str__(self):
return "OPEN version=%d asn=%d hold_time=%s router_id=%s capabilities=[%s]" % (
self.version, self.asn, self.hold_time, self.router_id,
self.capabilities)
@classmethod
def unpack_message(cls, data, _=None):
version = ord(data[0])
if version != 4:
# Only version 4 is supported nowdays..
raise Notify(2, 1, data[0])
asn = unpack('!H', data[1:3])[0]
hold_time = unpack('!H', data[3:5])[0]
numeric = unpack('!L', data[5:9])[0]
router_id = "%d.%d.%d.%d" % (numeric >> 24, (numeric >> 16) & 0xFF,
(numeric >> 8) & 0xFF, numeric & 0xFF)
capabilities = Capabilities.unpack(data[9:])
return cls(version, asn, router_id, capabilities, hold_time)
class Open (Message):
TYPE = chr(Message.Type.OPEN)
def __init__ (self,version,asn,router_id,capabilities,hold_time):
self.version = Version(version)
self.asn = ASN(asn)
self.hold_time = HoldTime(hold_time)
self.router_id = RouterID(router_id)
self.capabilities = capabilities
def message (self):
return self._message("%s%s%s%s%s" % (
self.version.pack(),
self.asn.trans(),
self.hold_time.pack(),
self.router_id.pack(),
self.capabilities.pack()
))
def __str__ (self):
return "OPEN version=%d asn=%d hold_time=%s router_id=%s capabilities=[%s]" % (self.version, self.asn, self.hold_time, self.router_id,self.capabilities)
