def make_tcp_sessions_ng(session):
connection = None # key == directed_key
reverse_connection = None
for ip,tcp in session:
directed_key = TCPSession.directed_key(ip.src,ip.dst,tcp.sport,tcp.dport)
not_repeat = None
while not not_repeat:
if not connection:
connection=TCPSession(directed_key)
reversed_key = TCPSession.directed_key(ip.dst,ip.src,tcp.dport,tcp.sport)
reverse_connection=TCPSession(reversed_key)
connection.pair = reverse_connection
reverse_connection.pair = connection
tcp.string_flags = tcp_flags(tcp.flags)
#tcp.partof=set()
if directed_key == connection.directed_key:
not_repeat=connection.packet(tcp)
elif directed_key == reverse_connection.directed_key:
not_repeat=reverse_connection.packet(tcp)
else:
assert False
if not not_repeat:
yield (connection,reverse_connection)
connection=None
reverse_connection=None
yield (connection,reverse_connection)
def print_packet(file, tcp, direction_hint=None):
if direction_hint is None:
display_key = TCPSession.split_key(tcp.connection.directed_key)
display_key = " %s : %s -> %s : %s " % display_key
else:
if direction_hint==tcp.connection.directed_key:
display_key = " --> "
else:
display_key = " <-- "
string_flags = tcp_flags(tcp.flags)
retr = ' '
if tcp.retransmit_original is not None:
retr = 'R'
if 'A' in string_flags:
ack = tcp.adjusted_ack
else:
ack=''
acked=getattr(tcp,'acked_by',None)
if acked is not None: acked=acked.num
sacked=getattr(tcp,'acked_sacked_by',None)
if sacked is not None: sacked=sacked.num
if sacked == acked:
sacked = ''
else:
sacked = "/"+str(sacked)
acked = str(acked)
sacked_acked=''
if len(tcp.data)>0 or 'S' in string_flags:
sacked_acked=acked+sacked
rtt = tcp.rtt
if rtt is not None and abs(rtt)>1000:
rtt = str(rtt/1000)+'s'
rtt = "[%4s]" % rtt
else:
rtt=''
adjusted_sack=getattr(tcp,'adjusted_sack', '')
print >> file, "%10d %7s %f %ls %4d %4s %7ds %7sa %5s %10s %s" % (tcp.num, rtt, tcp.ts, display_key, len(tcp.data), string_flags, getattr(tcp,'adjusted_seq',-1), ack, retr, sacked_acked, adjusted_sack),
partof = getattr(tcp,'partof',None)
if partof is not None:
for http, partkind in partof.iteritems():
print >> file, "%2s" % partkind,
print >> file, http.method,
if hasattr(http,'status'):
print >> file, http.status,
if hasattr(http,'uri'):
print >> file, http.uri,
if getattr(http,'reqid',None):
print >> file, http.reqid,
print >> file, ""
def print_packet(file, tcp, direction_hint=None):
if direction_hint is None:
display_key = TCPSession.split_key(tcp.connection.directed_key)
display_key = " %s : %s -> %s : %s " % display_key
else:
if direction_hint == tcp.connection.directed_key:
display_key = " --> "
else:
display_key = " <-- "
string_flags = tcp_flags(tcp.flags)
retr = ' '
if tcp.retransmit_original is not None:
retr = 'R'
if 'A' in string_flags:
ack = tcp.adjusted_ack
else:
ack = ''
acked = getattr(tcp, 'acked_by', None)
if acked is not None: acked = acked.num
sacked = getattr(tcp, 'acked_sacked_by', None)
if sacked is not None: sacked = sacked.num
if sacked == acked:
sacked = ''
else:
sacked = "/" + str(sacked)
acked = str(acked)
sacked_acked = ''
if len(tcp.data) > 0 or 'S' in string_flags:
sacked_acked = acked + sacked
rtt = tcp.rtt
if rtt is not None and abs(rtt) > 1000:
rtt = str(rtt / 1000) + 's'
rtt = "[%4s]" % rtt
else:
rtt = ''
adjusted_sack = getattr(tcp, 'adjusted_sack', '')
print >> file, "%10d %7s %f %ls %4d %4s %7ds %7sa %5s %10s %s" % (
tcp.num, rtt, tcp.ts, display_key, len(tcp.data), string_flags,
getattr(tcp, 'adjusted_seq',
-1), ack, retr, sacked_acked, adjusted_sack),
partof = getattr(tcp, 'partof', None)
if partof is not None:
for http, partkind in partof.iteritems():
print >> file, "%2s" % partkind,
print >> file, http.method,
if hasattr(http, 'status'):
print >> file, http.status,
if hasattr(http, 'uri'):
print >> file, http.uri,
if getattr(http, 'reqid', None):
print >> file, http.reqid,
print >> file, ""