diff options
| -rw-r--r-- | ryu/lib/packet/icmp.py | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/ryu/lib/packet/icmp.py b/ryu/lib/packet/icmp.py index 57b153c4..1a6cd76f 100644 --- a/ryu/lib/packet/icmp.py +++ b/ryu/lib/packet/icmp.py @@ -214,7 +214,12 @@ class dest_unreach(stringify.StringifyMixin): def __init__(self, data_len=0, mtu=0, data=None): super(dest_unreach, self).__init__() - self.data_len = data_len + + if ((data_len >= 0) and (data_len <= 255)): + self.data_len = data_len + else: + raise ValueError('Specified data length (%d) is invalid.' % data_len) + self.mtu = mtu self.data = data @@ -273,7 +278,11 @@ class TimeExceeded(stringify.StringifyMixin): _MIN_LEN = struct.calcsize(_PACK_STR) def __init__(self, data_len=0, data=None): - self.data_len = data_len + if ((data_len >= 0) and (data_len <= 255)): + self.data_len = data_len + else: + raise ValueError('Specified data length (%d) is invalid.' % data_len) + self.data = data @classmethod |