class Flags(baseobj.BaseObj)¶

Flags object

Methods defined here:
---------------------

__init__(self, data)
Constructor which takes a single byte as input

class IPv4(baseobj.BaseObj)¶

IPv4 object
Usage:


    from packet.internet.ipv4 import IPv4


    x = IPv4(pktt)
Object definition:
IPv4(


    version         = int,


    IHL             = int, # Internet Header Length (in 32bit words)


    header_size     = int, # IHL in actual bytes


    DSCP            = int, # Differentiated Services Code Point


    ECN             = int, # Explicit Congestion Notification


    total_size      = int, # Total length


    id              = int, # Identification


    flags = Flags(         # Flags:


        DF = int,          #   Don't Fragment


        MF = int,          #   More Fragments


    )


    fragment_offset = int, # Fragment offset (in 8-byte blocks)


    TTL             = int, # Time to Live


    protocol        = int, # Protocol of next layer (RFC790)


    checksum        = int, # Header checksum


    src             = "%d.%d.%d.%d", # source IP address


    dst             = "%d.%d.%d.%d", # destination IP address


    options = string, # IP options if available


    psize = int       # Payload data size


    data = string,    # Raw data of payload if protocol


                      # is not supported
)

Methods defined here:
---------------------

__init__(self, pktt)
Constructor
Initialize object's private data.

__str__(self)
String representation of object
The representation depends on the verbose level set by debug_repr().
If set to 0 the generic object representation is returned.
If set to 1 the representation of the object is condensed:


    '192.168.0.20 -> 192.168.0.61 '
If set to 2 the representation of the object also includes the
protocol and length of payload:


    '192.168.0.20 -> 192.168.0.61, protocol: 17(UDP), len: 84'