from scapy.config import conf
from scapy.compat import raw
from scapy.layers.inet import IP, TCP, TCPOptions
from scapy.packet import NoPayload, Packet
from scapy.error import warning, Scapy_Exception, log_runtime
from scapy.volatile import RandInt, RandByte, RandNum, RandShort, RandString
from scapy.sendrecv import sniff
from scapy.modules import six
from scapy.modules.six.moves import map, range
if conf.route is None:
# unused import, only to initialize conf.route
import scapy.route # noqa: F401
_p0fpaths = ["/etc/p0f", "/usr/share/p0f", "/opt/local"]
conf.p0f_base = select_path(_p0fpaths, "p0f.fp")
conf.p0fa_base = select_path(_p0fpaths, "p0fa.fp")
conf.p0fr_base = select_path(_p0fpaths, "p0fr.fp")
conf.p0fo_base = select_path(_p0fpaths, "p0fo.fp")
###############
# p0f stuff #
###############
# File format (according to p0f.fp) :
#
# wwww:ttt:D:ss:OOO...:QQ:OS:Details
#
# wwww - window size
# ttt - initial TTL
# D - don't fragment bit (0=unset, 1=set)
import random
from scapy.data import KnowledgeBase, select_path
from scapy.config import conf
from scapy.compat import raw, orb
from scapy.packet import NoPayload
from scapy.layers.inet import IP, TCP, TCPOptions
from scapy.layers.http import HTTP, HTTPRequest, HTTPResponse
from scapy.layers.inet6 import IPv6
from scapy.volatile import RandByte, RandShort, RandString
from scapy.error import warning
from scapy.modules.six import integer_types, string_types
from scapy.modules.six.moves import range
_p0fpaths = ["/etc/p0f", "/usr/share/p0f", "/opt/local"]
conf.p0f_base = select_path(_p0fpaths, "p0f.fp")
MIN_TCP4 = 40 # Min size of IPv4/TCP headers
MIN_TCP6 = 60 # Min size of IPv6/TCP headers
MAX_DIST = 35 # Maximum TTL distance for non-fuzzy signature matching
WIN_TYPE_NORMAL = 0 # Literal value
WIN_TYPE_ANY = 1 # Wildcard
WIN_TYPE_MOD = 2 # Modulo check
WIN_TYPE_MSS = 3 # Window size MSS multiplier
WIN_TYPE_MTU = 4 # Window size MTU multiplier
# Convert TCP option num to p0f (nop is handled separately)
tcp_options_p0f = {
2: "mss", # maximum segment size
3: "ws", # window scaling