def unpack(cls, data):
length, type = cls.rtattr.unpack(data[:cls.rtattr.size])
data_len = length - cls.rtattr.size
attr_data = struct.unpack(
'{0}s'.format(data_len),
data[cls.rtattr.size:cls.rtattr.size + data_len])[0]
return cls(type, attr_data), data[align(length):]
def __len__(self):
"""Aligned length of service template message + attributes."""
return align(self.nlmsghdr.size + len(self.payload))
def __repr__(self):
return """<rtattr datalen=%d rta_type=%d data="%s">""" % (
align(len(self.payload)), self.rta_type,
self.payload.encode('string_escape'))
def pack(self):
data = struct.pack('{0}s'.format(len(self.payload)), self.payload)
rta_len = self.rtattr.size+len(data)
return struct.pack('{0}{1}s'.format(self.rtattr.format, align(len(data))),
rta_len, self.rta_type, data)
def unpack(cls, data):
length, type = cls.rtattr.unpack(data[:cls.rtattr.size])
data_len = length-cls.rtattr.size
attr_data = struct.unpack('{0}s'.format(data_len),
data[cls.rtattr.size:cls.rtattr.size+data_len])[0]
return cls(type, attr_data), data[align(length):]
def __len__(self):
"""Aligned length of service template message + attributes."""
return align(self.nlmsghdr.size + len(self.payload))
def __repr__(self):
return """<rtattr datalen=%d rta_type=%d data="%s">""" % (
align(len(self.payload)), self.rta_type,
self.payload.encode('string_escape'))
def pack(self):
data = struct.pack('{0}s'.format(len(self.payload)), self.payload)
rta_len = self.rtattr.size + len(data)
return struct.pack(
'{0}{1}s'.format(self.rtattr.format, align(len(data))), rta_len,
self.rta_type, data)