diff options
Diffstat (limited to 'scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/tcp.py')
| -rw-r--r-- | scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/tcp.py | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/tcp.py b/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/tcp.py deleted file mode 100644 index fe1a3b97..00000000 --- a/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/tcp.py +++ /dev/null @@ -1,152 +0,0 @@ -# $Id: tcp.py 42 2007-08-02 22:38:47Z jon.oberheide $ -# -*- coding: utf-8 -*- -"""Transmission Control Protocol.""" - -import dpkt -from decorators import deprecated - -# TCP control flags -TH_FIN = 0x01 # end of data -TH_SYN = 0x02 # synchronize sequence numbers -TH_RST = 0x04 # reset connection -TH_PUSH = 0x08 # push -TH_ACK = 0x10 # acknowledgment number set -TH_URG = 0x20 # urgent pointer set -TH_ECE = 0x40 # ECN echo, RFC 3168 -TH_CWR = 0x80 # congestion window reduced - -TCP_PORT_MAX = 65535 # maximum port -TCP_WIN_MAX = 65535 # maximum (unscaled) window - - -class TCP(dpkt.Packet): - __hdr__ = ( - ('sport', 'H', 0xdead), - ('dport', 'H', 0), - ('seq', 'I', 0xdeadbeefL), - ('ack', 'I', 0), - ('off_x2', 'B', ((5 << 4) | 0)), - ('flags', 'B', TH_SYN), - ('win', 'H', TCP_WIN_MAX), - ('sum', 'H', 0), - ('urp', 'H', 0) - ) - opts = '' - - @property - def off(self): return self.off_x2 >> 4 - - @off.setter - def off(self, off): self.off_x2 = (off << 4) | (self.off_x2 & 0xf) - - # Deprecated methods, will be removed in the future - # ================================================= - @deprecated - def _get_off(self): return self.off - - @deprecated - def _set_off(self, off): self.off = off - # ================================================= - - def __len__(self): - return self.__hdr_len__ + len(self.opts) + len(self.data) - - def __str__(self): - return self.pack_hdr() + self.opts + str(self.data) - - def unpack(self, buf): - dpkt.Packet.unpack(self, buf) - ol = ((self.off_x2 >> 4) << 2) - self.__hdr_len__ - if ol < 0: - raise dpkt.UnpackError, 'invalid header length' - self.opts = buf[self.__hdr_len__:self.__hdr_len__ + ol] - self.data = buf[self.__hdr_len__ + ol:] - -# Options (opt_type) - http://www.iana.org/assignments/tcp-parameters -TCP_OPT_EOL = 0 # end of option list -TCP_OPT_NOP = 1 # no operation -TCP_OPT_MSS = 2 # maximum segment size -TCP_OPT_WSCALE = 3 # window scale factor, RFC 1072 -TCP_OPT_SACKOK = 4 # SACK permitted, RFC 2018 -TCP_OPT_SACK = 5 # SACK, RFC 2018 -TCP_OPT_ECHO = 6 # echo (obsolete), RFC 1072 -TCP_OPT_ECHOREPLY = 7 # echo reply (obsolete), RFC 1072 -TCP_OPT_TIMESTAMP = 8 # timestamp, RFC 1323 -TCP_OPT_POCONN = 9 # partial order conn, RFC 1693 -TCP_OPT_POSVC = 10 # partial order service, RFC 1693 -TCP_OPT_CC = 11 # connection count, RFC 1644 -TCP_OPT_CCNEW = 12 # CC.NEW, RFC 1644 -TCP_OPT_CCECHO = 13 # CC.ECHO, RFC 1644 -TCP_OPT_ALTSUM = 14 # alt checksum request, RFC 1146 -TCP_OPT_ALTSUMDATA = 15 # alt checksum data, RFC 1146 -TCP_OPT_SKEETER = 16 # Skeeter -TCP_OPT_BUBBA = 17 # Bubba -TCP_OPT_TRAILSUM = 18 # trailer checksum -TCP_OPT_MD5 = 19 # MD5 signature, RFC 2385 -TCP_OPT_SCPS = 20 # SCPS capabilities -TCP_OPT_SNACK = 21 # selective negative acks -TCP_OPT_REC = 22 # record boundaries -TCP_OPT_CORRUPT = 23 # corruption experienced -TCP_OPT_SNAP = 24 # SNAP -TCP_OPT_TCPCOMP = 26 # TCP compression filter -TCP_OPT_MAX = 27 - - -def parse_opts(buf): - """Parse TCP option buffer into a list of (option, data) tuples.""" - opts = [] - while buf: - o = ord(buf[0]) - if o > TCP_OPT_NOP: - try: - # advance buffer at least 2 bytes = 1 type + 1 length - l = max(2, ord(buf[1])) - d, buf = buf[2:l], buf[l:] - except (IndexError, ValueError): - # print 'bad option', repr(str(buf)) - opts.append(None) # XXX - break - else: - # options 0 and 1 are not followed by length byte - d, buf = '', buf[1:] - opts.append((o, d)) - return opts - - -def test_parse_opts(): - # normal scenarios - buf = '\x02\x04\x23\x00\x01\x01\x04\x02' - opts = parse_opts(buf) - assert opts == [ - (TCP_OPT_MSS, '\x23\x00'), - (TCP_OPT_NOP, ''), - (TCP_OPT_NOP, ''), - (TCP_OPT_SACKOK, '') - ] - - buf = '\x01\x01\x05\x0a\x37\xf8\x19\x70\x37\xf8\x29\x78' - opts = parse_opts(buf) - assert opts == [ - (TCP_OPT_NOP, ''), - (TCP_OPT_NOP, ''), - (TCP_OPT_SACK, '\x37\xf8\x19\x70\x37\xf8\x29\x78') - ] - - # test a zero-length option - buf = '\x02\x00\x01' - opts = parse_opts(buf) - assert opts == [ - (TCP_OPT_MSS, ''), - (TCP_OPT_NOP, '') - ] - - # test a one-byte malformed option - buf = '\xff' - opts = parse_opts(buf) - assert opts == [None] - - -if __name__ == '__main__': - # Runs all the test associated with this class/file - test_parse_opts() - print 'Tests Successful...' |