class Flags(packet.utils.OptionFlags)

TCP Option flags

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

__str__ = str_flags(self)

class Option(baseobj.BaseObj)

Option object

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

__init__(self, unpack)
Constructor which takes an unpack object as input

class Stream(baseobj.BaseObj)

TCP stream buffer object

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

__init__(self, seqno)
Constructor
Initialize object's private data according to the arguments given.
Arguments can be given as positional, named arguments or a
combination of both.

add_fragment(self, data, seq)
Add fragment data to stream buffer

missing_fragment(self, seq)
Check if given sequence number is within a missing fragment

class TCP(baseobj.BaseObj)

TCP object
Usage:


    from packet.transport.tcp import TCP


    x = TCP(pktt)
Object definition:
TCP(


    src_port    = int, # Source port


    dst_port    = int, # Destination port


    seq_number  = int, # Sequence number


    ack_number  = int, # Acknowledgment number


    hl          = int, # Data offset or header length (32bit words)


    header_size = int, # Data offset or header length in bytes


    flags = Flags(     # TCP flags:


        rawflags = int,#   Raw flags


        FIN = int,     #   No more data from sender


        SYN = int,     #   Synchronize sequence numbers


        RST = int,     #   Synchronize sequence numbers


        PSH = int,     #   Push function. Asks to push the buffered


                       #     data to the receiving application


        ACK = int,     #   Acknowledgment field is significant


        URG = int,     #   Urgent pointer field is significant


        ECE = int,     #   ECN-Echo has a dual role:


                       #     SYN=1, the TCP peer is ECN capable.


                       #     SYN=0, packet with Congestion Experienced


                       #     flag in IP header set is received during


                       #     normal transmission


        CWR = int,     #   Congestion Window Reduced


        NS  = int,     #   ECN-nonce concealment protection


    ),


    window_size = int, # Window size


    checksum    = int, # Checksum


    urgent_ptr  = int, # Urgent pointer


    seq         = int, # Relative sequence number


    options = list,    # List of TCP options


    psize = int,       # Payload data size


    data = string,     # Raw data of payload if unable to decode
)

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:


    'TCP 708 -> 2049, seq: 0xc4592255, ack: 0xca66dda1, ACK,FIN'
If set to 2 the representation of the object also includes the
length of payload and a little bit more verbose:


    'src port 708 -> dst port 2049, seq: 0xc4592255, ack: 0xca66dda1, len: 0, flags: FIN,ACK'