Annotation of elwix/config/etc/uboot/pf.os, revision 1.2

1.2     ! misho       1: # $FreeBSD: src/etc/pf.os,v 1.4 2006/10/23 05:09:44 delphij Exp $
        !             2: # $OpenBSD: pf.os,v 1.21 2006/07/28 21:51:12 david Exp $
        !             3: # passive OS fingerprinting
        !             4: # -------------------------
        !             5: #
        !             6: # SYN signatures. Those signatures work for SYN packets only (duh!).
        !             7: #
        !             8: # (C) Copyright 2000-2003 by Michal Zalewski <lcamtuf@coredump.cx>
        !             9: # (C) Copyright 2003 by Mike Frantzen <frantzen@w4g.org>
        !            10: #
        !            11: #  Permission to use, copy, modify, and distribute this software for any
        !            12: #  purpose with or without fee is hereby granted, provided that the above
        !            13: #  copyright notice and this permission notice appear in all copies.
        !            14: #
        !            15: #  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            16: #  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            17: #  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            18: #  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            19: #  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            20: #  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            21: #  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            22: #
        !            23: #
        !            24: # This fingerprint database is adapted from Michal Zalewski's p0f passive
        !            25: # operating system package.  The last database sync was from a Nov 3 2003
        !            26: # p0f.fp.
        !            27: #
        !            28: #
        !            29: # Each line in this file specifies a single fingerprint. Please read the
        !            30: # information below carefully before attempting to append any signatures
        !            31: # reported as UNKNOWN to this file to avoid mistakes.
        !            32: #
        !            33: # We use the following set metrics for fingerprinting:
        !            34: #
        !            35: # - Window size (WSS) - a highly OS dependent setting used for TCP/IP
        !            36: #   performance control (max. amount of data to be sent without ACK).
        !            37: #   Some systems use a fixed value for initial packets. On other
        !            38: #   systems, it is a multiple of MSS or MTU (MSS+40). In some rare
        !            39: #   cases, the value is just arbitrary.
        !            40: #
        !            41: #   NEW SIGNATURE: if p0f reported a special value of 'Snn', the number
        !            42: #   appears to be a multiple of MSS (MSS*nn); a special value of 'Tnn'
        !            43: #   means it is a multiple of MTU ((MSS+40)*nn). Unless you notice the
        !            44: #   value of nn is not fixed (unlikely), just copy the Snn or Tnn token
        !            45: #   literally. If you know this device has a simple stack and a fixed
        !            46: #   MTU, you can however multiply S value by MSS, or T value by MSS+40,
        !            47: #   and put it instead of Snn or Tnn.
        !            48: #
        !            49: #   If WSS otherwise looks like a fixed value (for example a multiple
        !            50: #   of two), or if you can confirm the value is fixed, please quote
        !            51: #   it literally. If there's no apparent pattern in WSS chosen, you
        !            52: #   should consider wildcarding this value.
        !            53: #
        !            54: # - Overall packet size - a function of all IP and TCP options and bugs.
        !            55: #
        !            56: #   NEW SIGNATURE: Copy this value literally.
        !            57: #
        !            58: # - Initial TTL - We check the actual TTL of a received packet. It can't
        !            59: #   be higher than the initial TTL, and also shouldn't be dramatically
        !            60: #   lower (maximum distance is defined as 40 hops).
        !            61: #
        !            62: #   NEW SIGNATURE: *Never* copy TTL from a p0f-reported signature literally.
        !            63: #   You need to determine the initial TTL. The best way to do it is to
        !            64: #   check the documentation for a remote system, or check its settings.
        !            65: #   A fairly good method is to simply round the observed TTL up to
        !            66: #   32, 64, 128, or 255, but it should be noted that some obscure devices
        !            67: #   might not use round TTLs (in particular, some shoddy appliances use
        !            68: #   "original" initial TTL settings). If not sure, you can see how many
        !            69: #   hops you're away from the remote party with traceroute or mtr.
        !            70: #
        !            71: # - Don't fragment flag (DF) - some modern OSes set this to implement PMTU
        !            72: #   discovery. Others do not bother.
        !            73: #
        !            74: #   NEW SIGNATURE: Copy this value literally.
        !            75: #
        !            76: # - Maximum segment size (MSS) - this setting is usually link-dependent. P0f
        !            77: #   uses it to determine link type of the remote host.
        !            78: #
        !            79: #   NEW SIGNATURE: Always wildcard this value, except for rare cases when
        !            80: #   you have an appliance with a fixed value, know the system supports only
        !            81: #   a very limited number of network interface types, or know the system
        !            82: #   is using a value it pulled out of nowhere.  Specific unique MSS
        !            83: #   can be used to tell Google crawlbots from the rest of the population.
        !            84: #
        !            85: # - Window scaling (WSCALE) - this feature is used to scale WSS.
        !            86: #   It extends the size of a TCP/IP window to 32 bits. Some modern
        !            87: #   systems implement this feature.
        !            88: #
        !            89: #   NEW SIGNATURE: Observe several signatures. Initial WSCALE is often set
        !            90: #   to zero or other low value. There's usually no need to wildcard this
        !            91: #   parameter.
        !            92: #
        !            93: # - Timestamp - some systems that implement timestamps set them to
        !            94: #   zero in the initial SYN. This case is detected and handled appropriately.
        !            95: #
        !            96: # - Selective ACK permitted - a flag set by systems that implement
        !            97: #   selective ACK functionality.
        !            98: #
        !            99: # - The sequence of TCP all options (MSS, window scaling, selective ACK
        !           100: #   permitted, timestamp, NOP). Other than the options previously
        !           101: #   discussed, p0f also checks for timestamp option (a silly
        !           102: #   extension to broadcast your uptime ;-), NOP options (used for
        !           103: #   header padding) and sackOK option (selective ACK feature).
        !           104: #
        !           105: #   NEW SIGNATURE: Copy the sequence literally.
        !           106: #
        !           107: # To wildcard any value (except for initial TTL or TCP options), replace
        !           108: # it with '*'. You can also use a modulo operator to match any values
        !           109: # that divide by nnn - '%nnn'.
        !           110: #
        !           111: # Fingerprint entry format:
        !           112: #
        !           113: # wwww:ttt:D:ss:OOO...:OS:Version:Subtype:Details
        !           114: #
        !           115: # wwww     - window size (can be *, %nnn, Snn or Tnn).  The special values
        !           116: #            "S" and "T" which are a multiple of MSS or a multiple of MTU
        !           117: #            respectively.
        !           118: # ttt      - initial TTL
        !           119: # D        - don't fragment bit (0 - not set, 1 - set)
        !           120: # ss       - overall SYN packet size
        !           121: # OOO      - option value and order specification (see below)
        !           122: # OS       - OS genre (Linux, Solaris, Windows)
        !           123: # Version  - OS Version (2.0.27 on x86, etc)
        !           124: # Subtype  - OS subtype or patchlevel (SP3, lo0)
        !           125: # details  - Generic OS details
        !           126: #
        !           127: # If OS genre starts with '*', p0f will not show distance, link type
        !           128: # and timestamp data. It is useful for userland TCP/IP stacks of
        !           129: # network scanners and so on, where many settings are randomized or
        !           130: # bogus.
        !           131: #
        !           132: # If OS genre starts with @, it denotes an approximate hit for a group
        !           133: # of operating systems (signature reporting still enabled in this case).
        !           134: # Use this feature at the end of this file to catch cases for which
        !           135: # you don't have a precise match, but can tell it's Windows or FreeBSD
        !           136: # or whatnot by looking at, say, flag layout alone.
        !           137: #
        !           138: # Option block description is a list of comma or space separated
        !           139: # options in the order they appear in the packet:
        !           140: #
        !           141: # N       - NOP option
        !           142: # Wnnn    - window scaling option, value nnn (or * or %nnn)
        !           143: # Mnnn    - maximum segment size option, value nnn (or * or %nnn)
        !           144: # S       - selective ACK OK
        !           145: # T       - timestamp
        !           146: # T0      - timestamp with a zero value
        !           147: #
        !           148: # To denote no TCP options, use a single '.'.
        !           149: #
        !           150: # Please report any additions to this file, or any inaccuracies or
        !           151: # problems spotted, to the maintainers: lcamtuf@coredump.cx,
        !           152: # frantzen@openbsd.org and bugs@openbsd.org with a tcpdump packet
        !           153: # capture of the relevant SYN packet(s)
        !           154: #
        !           155: # A test and submission page is available at
        !           156: # http://lcamtuf.coredump.cx/p0f-help/
        !           157: #
        !           158: #
        !           159: # WARNING WARNING WARNING
        !           160: # -----------------------
        !           161: #
        !           162: # Do not add a system X as OS Y just because NMAP says so. It is often
        !           163: # the case that X is a NAT firewall. While nmap is talking to the
        !           164: # device itself, p0f is fingerprinting the guy behind the firewall
        !           165: # instead.
        !           166: #
        !           167: # When in doubt, use common sense, don't add something that looks like
        !           168: # a completely different system as Linux or FreeBSD or LinkSys router.
        !           169: # Check DNS name, establish a connection to the remote host and look
        !           170: # at SYN+ACK - does it look similar?
        !           171: #
        !           172: # Some users tweak their TCP/IP settings - enable or disable RFC1323
        !           173: # functionality, enable or disable timestamps or selective ACK,
        !           174: # disable PMTU discovery, change MTU and so on. Always compare a new rule
        !           175: # to other fingerprints for this system, and verify the system isn't
        !           176: # "customized" before adding it. It is OK to add signature variants
        !           177: # caused by a commonly used software (personal firewalls, security
        !           178: # packages, etc), but it makes no sense to try to add every single
        !           179: # possible /proc/sys/net/ipv4 tweak on Linux or so.
        !           180: #
        !           181: # KEEP IN MIND: Some packet firewalls configured to normalize outgoing
        !           182: # traffic (OpenBSD pf with "scrub" enabled, for example) will, well,
        !           183: # normalize packets. Signatures will not correspond to the originating
        !           184: # system (and probably not quite to the firewall either).
        !           185: #
        !           186: # NOTE: Try to keep this file in some reasonable order, from most to
        !           187: # least likely systems. This will speed up operation. Also keep most
        !           188: # generic and broad rules near the end.
        !           189: #
        !           190: 
        !           191: ##########################
        !           192: # Standard OS signatures #
        !           193: ##########################
        !           194: 
        !           195: # ----------------- AIX ---------------------
        !           196: 
        !           197: # AIX is first because its signatures are close to NetBSD, MacOS X and
        !           198: # Linux 2.0, but it uses a fairly rare MSSes, at least sometimes...
        !           199: # This is a shoddy hack, though.
        !           200: 
        !           201: 45046:64:0:44:M*:              AIX:4.3::AIX 4.3
        !           202: 16384:64:0:44:M512:            AIX:4.3:2-3:AIX 4.3.2 and earlier
        !           203: 
        !           204: 16384:64:0:60:M512,N,W%2,N,N,T:                AIX:4.3:3:AIX 4.3.3-5.2
        !           205: 16384:64:0:60:M512,N,W%2,N,N,T:                AIX:5.1-5.2::AIX 4.3.3-5.2
        !           206: 32768:64:0:60:M512,N,W%2,N,N,T:                AIX:4.3:3:AIX 4.3.3-5.2
        !           207: 32768:64:0:60:M512,N,W%2,N,N,T:                AIX:5.1-5.2::AIX 4.3.3-5.2
        !           208: 65535:64:0:60:M512,N,W%2,N,N,T:                AIX:4.3:3:AIX 4.3.3-5.2
        !           209: 65535:64:0:60:M512,N,W%2,N,N,T:                AIX:5.1-5.2::AIX 4.3.3-5.2
        !           210: 65535:64:0:64:M*,N,W1,N,N,T,N,N,S:     AIX:5.3:ML1:AIX 5.3 ML1
        !           211: 
        !           212: # ----------------- Linux -------------------
        !           213: 
        !           214: # S1:64:0:44:M*:A:             Linux:1.2::Linux 1.2.x (XXX quirks support)
        !           215: 512:64:0:44:M*:                        Linux:2.0:3x:Linux 2.0.3x
        !           216: 16384:64:0:44:M*:              Linux:2.0:3x:Linux 2.0.3x
        !           217: 
        !           218: # Endian snafu! Nelson says "ha-ha":
        !           219: 2:64:0:44:M*:                  Linux:2.0:3x:Linux 2.0.3x (MkLinux) on Mac
        !           220: 64:64:0:44:M*:                 Linux:2.0:3x:Linux 2.0.3x (MkLinux) on Mac
        !           221: 
        !           222: 
        !           223: S4:64:1:60:M1360,S,T,N,W0:     Linux:google::Linux (Google crawlbot)
        !           224: 
        !           225: S2:64:1:60:M*,S,T,N,W0:                Linux:2.4::Linux 2.4 (big boy)
        !           226: S3:64:1:60:M*,S,T,N,W0:                Linux:2.4:.18-21:Linux 2.4.18 and newer
        !           227: S4:64:1:60:M*,S,T,N,W0:                Linux:2.4::Linux 2.4/2.6 <= 2.6.7
        !           228: S4:64:1:60:M*,S,T,N,W0:                Linux:2.6:.1-7:Linux 2.4/2.6 <= 2.6.7
        !           229: S4:64:1:60:M*,S,T,N,W7:                Linux:2.6:8:Linux 2.6.8 and newer (?)
        !           230: 
        !           231: S3:64:1:60:M*,S,T,N,W1:                Linux:2.5::Linux 2.5 (sometimes 2.4)
        !           232: S4:64:1:60:M*,S,T,N,W1:                Linux:2.5-2.6::Linux 2.5/2.6
        !           233: S3:64:1:60:M*,S,T,N,W2:                Linux:2.5::Linux 2.5 (sometimes 2.4)
        !           234: S4:64:1:60:M*,S,T,N,W2:                Linux:2.5::Linux 2.5 (sometimes 2.4)
        !           235: 
        !           236: S20:64:1:60:M*,S,T,N,W0:       Linux:2.2:20-25:Linux 2.2.20 and newer
        !           237: S22:64:1:60:M*,S,T,N,W0:       Linux:2.2::Linux 2.2
        !           238: S11:64:1:60:M*,S,T,N,W0:       Linux:2.2::Linux 2.2
        !           239: 
        !           240: # Popular cluster config scripts disable timestamps and
        !           241: # selective ACK:
        !           242: S4:64:1:48:M1460,N,W0:         Linux:2.4:cluster:Linux 2.4 in cluster
        !           243: 
        !           244: # This needs to be investigated. On some systems, WSS
        !           245: # is selected as a multiple of MTU instead of MSS. I got
        !           246: # many submissions for this for many late versions of 2.4:
        !           247: T4:64:1:60:M1412,S,T,N,W0:     Linux:2.4::Linux 2.4 (late, uncommon)
        !           248: 
        !           249: # This happens only over loopback, but let's make folks happy:
        !           250: 32767:64:1:60:M16396,S,T,N,W0: Linux:2.4:lo0:Linux 2.4 (local)
        !           251: S8:64:1:60:M3884,S,T,N,W0:     Linux:2.2:lo0:Linux 2.2 (local)
        !           252: 
        !           253: # Opera visitors:
        !           254: 16384:64:1:60:M*,S,T,N,W0:     Linux:2.2:Opera:Linux 2.2 (Opera?)
        !           255: 32767:64:1:60:M*,S,T,N,W0:     Linux:2.4:Opera:Linux 2.4 (Opera?)
        !           256: 
        !           257: # Some fairly common mods:
        !           258: S4:64:1:52:M*,N,N,S,N,W0:      Linux:2.4:ts:Linux 2.4 w/o timestamps
        !           259: S22:64:1:52:M*,N,N,S,N,W0:     Linux:2.2:ts:Linux 2.2 w/o timestamps
        !           260: 
        !           261: 
        !           262: # ----------------- FreeBSD -----------------
        !           263: 
        !           264: 16384:64:1:44:M*:              FreeBSD:2.0-2.2::FreeBSD 2.0-4.2
        !           265: 16384:64:1:44:M*:              FreeBSD:3.0-3.5::FreeBSD 2.0-4.2
        !           266: 16384:64:1:44:M*:              FreeBSD:4.0-4.2::FreeBSD 2.0-4.2
        !           267: 16384:64:1:60:M*,N,W0,N,N,T:   FreeBSD:4.4::FreeBSD 4.4
        !           268: 
        !           269: 1024:64:1:60:M*,N,W0,N,N,T:    FreeBSD:4.4::FreeBSD 4.4
        !           270: 
        !           271: 57344:64:1:44:M*:              FreeBSD:4.6-4.8:noRFC1323:FreeBSD 4.6-4.8 (no RFC1323)
        !           272: 57344:64:1:60:M*,N,W0,N,N,T:   FreeBSD:4.6-4.9::FreeBSD 4.6-4.9
        !           273: 
        !           274: 32768:64:1:60:M*,N,W0,N,N,T:   FreeBSD:4.8-4.11::FreeBSD 4.8-5.1 (or MacOS X)
        !           275: 32768:64:1:60:M*,N,W0,N,N,T:   FreeBSD:5.0-5.1::FreeBSD 4.8-5.1 (or MacOS X)
        !           276: 65535:64:1:60:M*,N,W0,N,N,T:   FreeBSD:4.8-4.11::FreeBSD 4.8-5.2 (or MacOS X)
        !           277: 65535:64:1:60:M*,N,W0,N,N,T:   FreeBSD:5.0-5.2::FreeBSD 4.8-5.2 (or MacOS X)
        !           278: 65535:64:1:60:M*,N,W1,N,N,T:   FreeBSD:4.7-4.11::FreeBSD 4.7-5.2
        !           279: 65535:64:1:60:M*,N,W1,N,N,T:   FreeBSD:5.0-5.2::FreeBSD 4.7-5.2
        !           280: 
        !           281: # XXX need quirks support
        !           282: # 65535:64:1:60:M*,N,W0,N,N,T:Z:FreeBSD:5.1-5.4::5.1-current (1)
        !           283: # 65535:64:1:60:M*,N,W1,N,N,T:Z:FreeBSD:5.1-5.4::5.1-current (2)
        !           284: # 65535:64:1:60:M*,N,W2,N,N,T:Z:FreeBSD:5.1-5.4::5.1-current (3)
        !           285: # 65535:64:1:44:M*:Z:FreeBSD:5.2::FreeBSD 5.2 (no RFC1323)
        !           286: 
        !           287: # 16384:64:1:60:M*,N,N,N,N,N,N,T:FreeBSD:4.4:noTS:FreeBSD 4.4 (w/o timestamps)
        !           288: 
        !           289: # ----------------- NetBSD ------------------
        !           290: 
        !           291: 16384:64:0:60:M*,N,W0,N,N,T:   NetBSD:1.3::NetBSD 1.3
        !           292: 65535:64:0:60:M*,N,W0,N,N,T0:  NetBSD:1.6:opera:NetBSD 1.6 (Opera)
        !           293: 16384:64:0:60:M*,N,W0,N,N,T0:  NetBSD:1.6::NetBSD 1.6
        !           294: 16384:64:1:60:M*,N,W0,N,N,T0:  NetBSD:1.6:df:NetBSD 1.6 (DF)
        !           295: 65535:64:1:60:M*,N,W1,N,N,T0:  NetBSD:1.6::NetBSD 1.6W-current (DF)
        !           296: 65535:64:1:60:M*,N,W0,N,N,T0:  NetBSD:1.6::NetBSD 1.6X (DF)
        !           297: 32768:64:1:60:M*,N,W0,N,N,T0:  NetBSD:1.6:randomization:NetBSD 1.6ZH-current (w/ ip_id randomization)
        !           298: 
        !           299: # ----------------- OpenBSD -----------------
        !           300: 
        !           301: 16384:64:0:60:M*,N,W0,N,N,T:           OpenBSD:2.6::NetBSD 1.3 (or OpenBSD 2.6)
        !           302: 16384:64:1:64:M*,N,N,S,N,W0,N,N,T:     OpenBSD:3.0-4.0::OpenBSD 3.0-4.0
        !           303: 16384:64:0:64:M*,N,N,S,N,W0,N,N,T:     OpenBSD:3.0-4.0:no-df:OpenBSD 3.0-4.0 (scrub no-df)
        !           304: 57344:64:1:64:M*,N,N,S,N,W0,N,N,T:     OpenBSD:3.3-4.0::OpenBSD 3.3-4.0
        !           305: 57344:64:0:64:M*,N,N,S,N,W0,N,N,T:     OpenBSD:3.3-4.0:no-df:OpenBSD 3.3-4.0 (scrub no-df)
        !           306: 
        !           307: 65535:64:1:64:M*,N,N,S,N,W0,N,N,T:     OpenBSD:3.0-4.0:opera:OpenBSD 3.0-4.0 (Opera)
        !           308: 
        !           309: # ----------------- Solaris -----------------
        !           310: 
        !           311: S17:64:1:64:N,W3,N,N,T0,N,N,S,M*:      Solaris:8:RFC1323:Solaris 8 RFC1323
        !           312: S17:64:1:48:N,N,S,M*:                  Solaris:8::Solaris 8
        !           313: S17:255:1:44:M*:                       Solaris:2.5-2.7::Solaris 2.5 to 7
        !           314: 
        !           315: S6:255:1:44:M*:                                Solaris:2.6-2.7::Solaris 2.6 to 7
        !           316: S23:255:1:44:M*:                       Solaris:2.5:1:Solaris 2.5.1
        !           317: S34:64:1:48:M*,N,N,S:                  Solaris:2.9::Solaris 9
        !           318: S44:255:1:44:M*:                       Solaris:2.7::Solaris 7
        !           319: 
        !           320: 4096:64:0:44:M1460:                    SunOS:4.1::SunOS 4.1.x
        !           321: 
        !           322: S34:64:1:52:M*,N,W0,N,N,S:             Solaris:10:beta:Solaris 10 (beta)
        !           323: 32850:64:1:64:M*,N,N,T,N,W1,N,N,S:     Solaris:10::Solaris 10 1203
        !           324: 
        !           325: # ----------------- IRIX --------------------
        !           326: 
        !           327: 49152:64:0:44:M*:                      IRIX:6.4::IRIX 6.4
        !           328: 61440:64:0:44:M*:                      IRIX:6.2-6.5::IRIX 6.2-6.5
        !           329: 49152:64:0:52:M*,N,W2,N,N,S:           IRIX:6.5:RFC1323:IRIX 6.5 (RFC1323)
        !           330: 49152:64:0:52:M*,N,W3,N,N,S:           IRIX:6.5:RFC1323:IRIX 6.5 (RFC1323)
        !           331: 
        !           332: 61440:64:0:48:M*,N,N,S:                        IRIX:6.5:12-21:IRIX 6.5.12 - 6.5.21
        !           333: 49152:64:0:48:M*,N,N,S:                        IRIX:6.5:15-21:IRIX 6.5.15 - 6.5.21
        !           334: 
        !           335: 49152:60:0:64:M*,N,W2,N,N,T,N,N,S:     IRIX:6.5:IP27:IRIX 6.5 IP27
        !           336: 
        !           337: 
        !           338: # ----------------- Tru64 -------------------
        !           339: 
        !           340: 32768:64:1:48:M*,N,W0:                 Tru64:4.0::Tru64 4.0 (or OS/2 Warp 4)
        !           341: 32768:64:0:48:M*,N,W0:                 Tru64:5.0::Tru64 5.0
        !           342: 8192:64:0:44:M1460:                    Tru64:5.1:noRFC1323:Tru64 6.1 (no RFC1323) (or QNX 6)
        !           343: 61440:64:0:48:M*,N,W0:                 Tru64:5.1a:JP4:Tru64 v5.1a JP4 (or OpenVMS 7.x on Compaq 5.x stack)
        !           344: 
        !           345: # ----------------- OpenVMS -----------------
        !           346: 
        !           347: 6144:64:1:60:M*,N,W0,N,N,T:            OpenVMS:7.2::OpenVMS 7.2 (Multinet 4.4 stack)
        !           348: 
        !           349: # ----------------- MacOS -------------------
        !           350: 
        !           351: # XXX Need EOL tcp opt support
        !           352: # S2:255:1:48:M*,W0,E:.:MacOS:8.6 classic
        !           353: 
        !           354: # XXX some of these use EOL too
        !           355: 16616:255:1:48:M*,W0:                  MacOS:7.3-7.6:OTTCP:MacOS 7.3-8.6 (OTTCP)
        !           356: 16616:255:1:48:M*,W0:                  MacOS:8.0-8.6:OTTCP:MacOS 7.3-8.6 (OTTCP)
        !           357: 16616:255:1:48:M*,N,N,N:               MacOS:8.1-8.6:OTTCP:MacOS 8.1-8.6 (OTTCP)
        !           358: 32768:255:1:48:M*,W0,N:                        MacOS:9.0-9.2::MacOS 9.0-9.2
        !           359: 65535:255:1:48:M*,N,N,N,N:             MacOS:9.1::MacOS 9.1 (OT 2.7.4)
        !           360: 
        !           361: 
        !           362: # ----------------- Windows -----------------
        !           363: 
        !           364: # Windows TCP/IP stack is a mess. For most recent XP, 2000 and
        !           365: # even 98, the pathlevel, not the actual OS version, is more
        !           366: # relevant to the signature. They share the same code, so it would
        !           367: # seem. Luckily for us, almost all Windows 9x boxes have an
        !           368: # awkward MSS of 536, which I use to tell one from another
        !           369: # in most difficult cases.
        !           370: 
        !           371: 8192:32:1:44:M*:                       Windows:3.11::Windows 3.11 (Tucows)
        !           372: S44:64:1:64:M*,N,W0,N,N,T0,N,N,S:      Windows:95::Windows 95
        !           373: 8192:128:1:64:M*,N,W0,N,N,T0,N,N,S:    Windows:95:b:Windows 95b
        !           374: 
        !           375: # There were so many tweaking tools and so many stack versions for
        !           376: # Windows 98 it is no longer possible to tell them from each other
        !           377: # without some very serious research. Until then, there's an insane
        !           378: # number of signatures, for your amusement:
        !           379: 
        !           380: S44:32:1:48:M*,N,N,S:                  Windows:98:lowTTL:Windows 98 (low TTL)
        !           381: 8192:32:1:48:M*,N,N,S:                 Windows:98:lowTTL:Windows 98 (low TTL)
        !           382: %8192:64:1:48:M536,N,N,S:              Windows:98::Windows 98
        !           383: %8192:128:1:48:M536,N,N,S:             Windows:98::Windows 98
        !           384: S4:64:1:48:M*,N,N,S:                   Windows:98::Windows 98
        !           385: S6:64:1:48:M*,N,N,S:                   Windows:98::Windows 98
        !           386: S12:64:1:48:M*,N,N,S:                  Windows:98::Windows 98
        !           387: T30:64:1:64:M1460,N,W0,N,N,T0,N,N,S:   Windows:98::Windows 98
        !           388: 32767:64:1:48:M*,N,N,S:                        Windows:98::Windows 98
        !           389: 37300:64:1:48:M*,N,N,S:                        Windows:98::Windows 98
        !           390: 46080:64:1:52:M*,N,W3,N,N,S:           Windows:98:RFC1323:Windows 98 (RFC1323)
        !           391: 65535:64:1:44:M*:                      Windows:98:noSack:Windows 98 (no sack)
        !           392: S16:128:1:48:M*,N,N,S:                 Windows:98::Windows 98
        !           393: S16:128:1:64:M*,N,W0,N,N,T0,N,N,S:     Windows:98::Windows 98
        !           394: S26:128:1:48:M*,N,N,S:                 Windows:98::Windows 98
        !           395: T30:128:1:48:M*,N,N,S:                 Windows:98::Windows 98
        !           396: 32767:128:1:52:M*,N,W0,N,N,S:          Windows:98::Windows 98
        !           397: 60352:128:1:48:M*,N,N,S:               Windows:98::Windows 98
        !           398: 60352:128:1:64:M*,N,W2,N,N,T0,N,N,S:   Windows:98::Windows 98
        !           399: 
        !           400: # What's with 1414 on NT?
        !           401: T31:128:1:44:M1414:                    Windows:NT:4.0:Windows NT 4.0 SP6a
        !           402: 64512:128:1:44:M1414:                  Windows:NT:4.0:Windows NT 4.0 SP6a
        !           403: 8192:128:1:44:M*:                      Windows:NT:4.0:Windows NT 4.0 (older)
        !           404: 
        !           405: # Windows XP and 2000. Most of the signatures that were
        !           406: # either dubious or non-specific (no service pack data)
        !           407: # were deleted and replaced with generics at the end.
        !           408: 
        !           409: 65535:128:1:48:M*,N,N,S:               Windows:2000:SP4:Windows 2000 SP4, XP SP1
        !           410: 65535:128:1:48:M*,N,N,S:               Windows:XP:SP1:Windows 2000 SP4, XP SP1
        !           411: %8192:128:1:48:M*,N,N,S:               Windows:2000:SP2+:Windows 2000 SP2, XP SP1 (seldom 98 4.10.2222)
        !           412: %8192:128:1:48:M*,N,N,S:               Windows:XP:SP1:Windows 2000 SP2, XP SP1 (seldom 98 4.10.2222)
        !           413: S20:128:1:48:M*,N,N,S:                 Windows:2000::Windows 2000/XP SP3
        !           414: S20:128:1:48:M*,N,N,S:                 Windows:XP:SP3:Windows 2000/XP SP3
        !           415: S45:128:1:48:M*,N,N,S:                 Windows:2000:SP4:Windows 2000 SP4, XP SP 1
        !           416: S45:128:1:48:M*,N,N,S:                 Windows:XP:SP1:Windows 2000 SP4, XP SP 1
        !           417: 40320:128:1:48:M*,N,N,S:               Windows:2000:SP4:Windows 2000 SP4
        !           418: 
        !           419: S6:128:1:48:M*,N,N,S:                  Windows:2000:SP2:Windows XP, 2000 SP2+
        !           420: S6:128:1:48:M*,N,N,S:                  Windows:XP::Windows XP, 2000 SP2+
        !           421: S12:128:1:48:M*,N,N,S:                 Windows:XP:SP1:Windows XP SP1
        !           422: S44:128:1:48:M*,N,N,S:                 Windows:2000:SP3:Windows Pro SP1, 2000 SP3
        !           423: S44:128:1:48:M*,N,N,S:                 Windows:XP:SP1:Windows Pro SP1, 2000 SP3
        !           424: 64512:128:1:48:M*,N,N,S:               Windows:2000:SP3:Windows SP1, 2000 SP3
        !           425: 64512:128:1:48:M*,N,N,S:               Windows:XP:SP1:Windows SP1, 2000 SP3
        !           426: 32767:128:1:48:M*,N,N,S:               Windows:2000:SP4:Windows SP1, 2000 SP4
        !           427: 32767:128:1:48:M*,N,N,S:               Windows:XP:SP1:Windows SP1, 2000 SP4
        !           428: 
        !           429: # Odds, ends, mods:
        !           430: 
        !           431: S52:128:1:48:M1260,N,N,S:              Windows:2000:cisco:Windows XP/2000 via Cisco
        !           432: S52:128:1:48:M1260,N,N,S:              Windows:XP:cisco:Windows XP/2000 via Cisco
        !           433: 65520:128:1:48:M*,N,N,S:               Windows:XP::Windows XP bare-bone
        !           434: 16384:128:1:52:M536,N,W0,N,N,S:                Windows:2000:ZoneAlarm:Windows 2000 w/ZoneAlarm?
        !           435: 2048:255:0:40:.:                       Windows:.NET::Windows .NET Enterprise Server
        !           436: 
        !           437: 44620:64:0:48:M*,N,N,S:                        Windows:ME::Windows ME no SP (?)
        !           438: S6:255:1:48:M536,N,N,S:                        Windows:95:winsock2:Windows 95 winsock 2
        !           439: 32768:32:1:52:M1460,N,W0,N,N,S:                Windows:2003:AS:Windows 2003 AS
        !           440: 
        !           441: 
        !           442: # No need to be more specific, it passes:
        !           443: # *:128:1:48:M*,N,N,S:U:-Windows:XP/2000 while downloading (leak!) XXX quirk
        !           444: # there is an equiv similar generic sig w/o the quirk
        !           445: 
        !           446: # ----------------- HP/UX -------------------
        !           447: 
        !           448: 32768:64:1:44:M*:                      HP-UX:B.10.20::HP-UX B.10.20
        !           449: 32768:64:0:48:M*,W0,N:                 HP-UX:11.0::HP-UX 11.0
        !           450: 32768:64:1:48:M*,W0,N:                 HP-UX:11.10::HP-UX 11.0 or 11.11
        !           451: 32768:64:1:48:M*,W0,N:                 HP-UX:11.11::HP-UX 11.0 or 11.11
        !           452: 
        !           453: # Whoa. Hardcore WSS.
        !           454: 0:64:0:48:M*,W0,N:                     HP-UX:B.11.00:A:HP-UX B.11.00 A (RFC1323)
        !           455: 
        !           456: # ----------------- RiscOS ------------------
        !           457: 
        !           458: # We don't yet support the ?12 TCP option
        !           459: #16384:64:1:68:M1460,N,W0,N,N,T,N,N,?12:       RISCOS:3.70-4.36::RISC OS 3.70-4.36
        !           460: 12288:32:0:44:M536:                            RISC OS:3.70:4.10:RISC OS 3.70 inet 4.10
        !           461: 
        !           462: # XXX quirk
        !           463: # 4096:64:1:56:M1460,N,N,T:T:                  RISC OS:3.70:freenet:RISC OS 3.70 freenet 2.00
        !           464: 
        !           465: 
        !           466: 
        !           467: # ----------------- BSD/OS ------------------
        !           468: 
        !           469: # Once again, power of two WSS is also shared by MacOS X with DF set
        !           470: 8192:64:1:60:M1460,N,W0,N,N,T:         BSD/OS:3.1::BSD/OS 3.1-4.3 (or MacOS X 10.2 w/DF)
        !           471: 8192:64:1:60:M1460,N,W0,N,N,T:         BSD/OS:4.0-4.3::BSD/OS 3.1-4.3 (or MacOS X 10.2)
        !           472: 
        !           473: 
        !           474: # ---------------- NewtonOS -----------------
        !           475: 
        !           476: 4096:64:0:44:M1420:            NewtonOS:2.1::NewtonOS 2.1
        !           477: 
        !           478: # ---------------- NeXTSTEP -----------------
        !           479: 
        !           480: S4:64:0:44:M1024:              NeXTSTEP:3.3::NeXTSTEP 3.3
        !           481: S8:64:0:44:M512:               NeXTSTEP:3.3::NeXTSTEP 3.3
        !           482: 
        !           483: # ------------------ BeOS -------------------
        !           484: 
        !           485: 1024:255:0:48:M*,N,W0:         BeOS:5.0-5.1::BeOS 5.0-5.1
        !           486: 12288:255:0:44:M1402:          BeOS:5.0::BeOS 5.0.x
        !           487: 
        !           488: # ------------------ OS/400 -----------------
        !           489: 
        !           490: 8192:64:1:60:M1440,N,W0,N,N,T: OS/400:VR4::OS/400 VR4/R5
        !           491: 8192:64:1:60:M1440,N,W0,N,N,T: OS/400:VR5::OS/400 VR4/R5
        !           492: 4096:64:1:60:M1440,N,W0,N,N,T: OS/400:V4R5:CF67032:OS/400 V4R5 + CF67032
        !           493: 
        !           494: # XXX quirk
        !           495: # 28672:64:0:44:M1460:A:OS/390:?
        !           496: 
        !           497: # ------------------ ULTRIX -----------------
        !           498: 
        !           499: 16384:64:0:40:.:               ULTRIX:4.5::ULTRIX 4.5
        !           500: 
        !           501: # ------------------- QNX -------------------
        !           502: 
        !           503: S16:64:0:44:M512:              QNX:::QNX demodisk
        !           504: 
        !           505: # ------------------ Novell -----------------
        !           506: 
        !           507: 16384:128:1:44:M1460:          Novell:NetWare:5.0:Novel Netware 5.0
        !           508: 6144:128:1:44:M1460:           Novell:IntranetWare:4.11:Novell IntranetWare 4.11
        !           509: 6144:128:1:44:M1368:           Novell:BorderManager::Novell BorderManager ?
        !           510: 
        !           511: 6144:128:1:52:M*,W0,N,S,N,N:   Novell:Netware:6:Novell Netware 6 SP3
        !           512: 
        !           513: 
        !           514: # ----------------- SCO ------------------
        !           515: S3:64:1:60:M1460,N,W0,N,N,T:   SCO:UnixWare:7.1:SCO UnixWare 7.1
        !           516: S17:64:1:60:M1380,N,W0,N,N,T:  SCO:UnixWare:7.1:SCO UnixWare 7.1.3 MP3
        !           517: S23:64:1:44:M1380:             SCO:OpenServer:5.0:SCO OpenServer 5.0
        !           518: 
        !           519: # ------------------- DOS -------------------
        !           520: 
        !           521: 2048:255:0:44:M536:            DOS:WATTCP:1.05:DOS Arachne via WATTCP/1.05
        !           522: T2:255:0:44:M984:              DOS:WATTCP:1.05Arachne:Arachne via WATTCP/1.05 (eepro)
        !           523: 
        !           524: # ------------------ OS/2 -------------------
        !           525: 
        !           526: S56:64:0:44:M512:              OS/2:4::OS/2 4
        !           527: 28672:64:0:44:M1460:           OS/2:4::OS/2 Warp 4.0
        !           528: 
        !           529: # ----------------- TOPS-20 -----------------
        !           530: 
        !           531: # Another hardcore MSS, one of the ACK leakers hunted down.
        !           532: # XXX QUIRK 0:64:0:44:M1460:A:TOPS-20:version 7
        !           533: 0:64:0:44:M1460:               TOPS-20:7::TOPS-20 version 7
        !           534: 
        !           535: # ----------------- FreeMiNT ----------------
        !           536: 
        !           537: S44:255:0:44:M536:             FreeMiNT:1:16A:FreeMiNT 1 patch 16A (Atari)
        !           538: 
        !           539: # ------------------ AMIGA ------------------
        !           540: 
        !           541: # XXX TCP option 12
        !           542: # S32:64:1:56:M*,N,N,S,N,N,?12:.:AMIGA:3.9 BB2 with Miami stack
        !           543: 
        !           544: # ------------------ Plan9 ------------------
        !           545: 
        !           546: 65535:255:0:48:M1460,W0,N:     Plan9:4::Plan9 edition 4
        !           547: 
        !           548: # ----------------- AMIGAOS -----------------
        !           549: 
        !           550: 16384:64:1:48:M1560,N,N,S:     AMIGAOS:3.9::AMIGAOS 3.9 BB2 MiamiDX
        !           551: 
        !           552: ###########################################
        !           553: # Appliance / embedded / other signatures #
        !           554: ###########################################
        !           555: 
        !           556: # ---------- Firewalls / routers ------------
        !           557: 
        !           558: S12:64:1:44:M1460:                     @Checkpoint:::Checkpoint (unknown 1)
        !           559: S12:64:1:48:N,N,S,M1460:               @Checkpoint:::Checkpoint (unknown 2)
        !           560: 4096:32:0:44:M1460:                    ExtremeWare:4.x::ExtremeWare 4.x
        !           561: 
        !           562: # XXX TCP option 12
        !           563: # S32:64:0:68:M512,N,W0,N,N,T,N,N,?12:.:Nokia:IPSO w/Checkpoint NG FP3
        !           564: # S16:64:0:68:M1024,N,W0,N,N,T,N,N,?12:.:Nokia:IPSO 3.7 build 026
        !           565: 
        !           566: S4:64:1:60:W0,N,S,T,M1460:             FortiNet:FortiGate:50:FortiNet FortiGate 50
        !           567: 
        !           568: 8192:64:1:44:M1460:                    Eagle:::Eagle Secure Gateway
        !           569: 
        !           570: S52:128:1:48:M1260,N,N,N,N:            LinkSys:WRV54G::LinkSys WRV54G VPN router
        !           571: 
        !           572: 
        !           573: 
        !           574: # ------- Switches and other stuff ----------
        !           575: 
        !           576: 4128:255:0:44:M*:                      Cisco:::Cisco Catalyst 3500, 7500 etc
        !           577: S8:255:0:44:M*:                                Cisco:12008::Cisco 12008
        !           578: 60352:128:1:64:M1460,N,W2,N,N,T,N,N,S: Alteon:ACEswitch::Alteon ACEswitch
        !           579: 64512:128:1:44:M1370:                  Nortel:Contivity Client::Nortel Conectivity Client
        !           580: 
        !           581: 
        !           582: # ---------- Caches and whatnots ------------
        !           583: 
        !           584: S4:64:1:52:M1460,N,N,S,N,W0:           AOL:web cache::AOL web cache
        !           585: 
        !           586: 32850:64:1:64:N,W1,N,N,T,N,N,S,M*:     NetApp:5.x::NetApp Data OnTap 5.x
        !           587: 16384:64:1:64:M1460,N,N,S,N,W0,N:      NetApp:5.3:1:NetApp 5.3.1
        !           588: 65535:64:0:64:M1460,N,N,S,N,W*,N,N,T:  NetApp:5.3-5.5::NetApp 5.3-5.5
        !           589: 65535:64:0:60:M1460,N,W0,N,N,T:                NetApp:CacheFlow::NetApp CacheFlow
        !           590: 8192:64:1:64:M1460,N,N,S,N,W0,N,N,T:   NetApp:5.2:1:NetApp NetCache 5.2.1
        !           591: 20480:64:1:64:M1460,N,N,S,N,W0,N,N,T:  NetApp:4.1::NetApp NetCache4.1
        !           592: 
        !           593: 65535:64:0:60:M1460,N,W0,N,N,T:                CacheFlow:4.1::CacheFlow CacheOS 4.1
        !           594: 8192:64:0:60:M1380,N,N,N,N,N,N,T:      CacheFlow:1.1::CacheFlow CacheOS 1.1
        !           595: 
        !           596: S4:64:0:48:M1460,N,N,S:                        Cisco:Content Engine::Cisco Content Engine
        !           597: 
        !           598: 27085:128:0:40:.:                      Dell:PowerApp cache::Dell PowerApp (Linux-based)
        !           599: 
        !           600: 65535:255:1:48:N,W1,M1460:             Inktomi:crawler::Inktomi crawler
        !           601: S1:255:1:60:M1460,S,T,N,W0:            LookSmart:ZyBorg::LookSmart ZyBorg
        !           602: 
        !           603: 16384:255:0:40:.:                      Proxyblocker:::Proxyblocker (what's this?)
        !           604: 
        !           605: 65535:255:0:48:M*,N,N,S:               Redline:::Redline T|X 2200
        !           606: 
        !           607: 32696:128:0:40:M1460:                  Spirent:Avalanche::Spirent Web Avalanche HTTP benchmarking engine
        !           608: 
        !           609: # ----------- Embedded systems --------------
        !           610: 
        !           611: S9:255:0:44:M536:                      PalmOS:Tungsten:C:PalmOS Tungsten C
        !           612: S5:255:0:44:M536:                      PalmOS:3::PalmOS 3/4
        !           613: S5:255:0:44:M536:                      PalmOS:4::PalmOS 3/4
        !           614: S4:255:0:44:M536:                      PalmOS:3:5:PalmOS 3.5
        !           615: 2948:255:0:44:M536:                    PalmOS:3:5:PalmOS 3.5.3 (Handera)
        !           616: S29:255:0:44:M536:                     PalmOS:5::PalmOS 5.0
        !           617: 16384:255:0:44:M1398:                  PalmOS:5.2:Clie:PalmOS 5.2 (Clie)
        !           618: S14:255:0:44:M1350:                    PalmOS:5.2:Treo:PalmOS 5.2.1 (Treo)
        !           619: 
        !           620: S23:64:1:64:N,W1,N,N,T,N,N,S,M1460:    SymbianOS:7::SymbianOS 7
        !           621: 
        !           622: 8192:255:0:44:M1460:                   SymbianOS:6048::Symbian OS 6048 (Nokia 7650?)
        !           623: 8192:255:0:44:M536:                    SymbianOS:9210::Symbian OS (Nokia 9210?)
        !           624: S22:64:1:56:M1460,T,S:                 SymbianOS:P800::Symbian OS ? (SE P800?)
        !           625: S36:64:1:56:M1360,T,S:                 SymbianOS:6600::Symbian OS 60xx (Nokia 6600?)
        !           626: 
        !           627: 
        !           628: # Perhaps S4?
        !           629: 5840:64:1:60:M1452,S,T,N,W1:           Zaurus:3.10::Zaurus 3.10
        !           630: 
        !           631: 32768:128:1:64:M1460,N,W0,N,N,T0,N,N,S:        PocketPC:2002::PocketPC 2002
        !           632: 
        !           633: S1:255:0:44:M346:                      Contiki:1.1:rc0:Contiki 1.1-rc0
        !           634: 
        !           635: 4096:128:0:44:M1460:                   Sega:Dreamcast:3.0:Sega Dreamcast Dreamkey 3.0
        !           636: T5:64:0:44:M536:                       Sega:Dreamcast:HKT-3020:Sega Dreamcast HKT-3020 (browser disc 51027)
        !           637: S22:64:1:44:M1460:                     Sony:PS2::Sony Playstation 2 (SOCOM?)
        !           638: 
        !           639: S12:64:0:44:M1452:                     AXIS:5600:v5.64:AXIS Printer Server 5600 v5.64
        !           640: 
        !           641: 3100:32:1:44:M1460:                    Windows:CE:2.0:Windows CE 2.0
        !           642: 
        !           643: ####################
        !           644: # Fancy signatures #
        !           645: ####################
        !           646: 
        !           647: 1024:64:0:40:.:                                *NMAP:syn scan:1:NMAP syn scan (1)
        !           648: 2048:64:0:40:.:                                *NMAP:syn scan:2:NMAP syn scan (2)
        !           649: 3072:64:0:40:.:                                *NMAP:syn scan:3:NMAP syn scan (3)
        !           650: 4096:64:0:40:.:                                *NMAP:syn scan:4:NMAP syn scan (4)
        !           651: 
        !           652: # Requires quirks support
        !           653: # 1024:64:0:40:.:A:*NMAP:TCP sweep probe (1)
        !           654: # 2048:64:0:40:.:A:*NMAP:TCP sweep probe (2)
        !           655: # 3072:64:0:40:.:A:*NMAP:TCP sweep probe (3)
        !           656: # 4096:64:0:40:.:A:*NMAP:TCP sweep probe (4)
        !           657: 
        !           658: 1024:64:0:60:W10,N,M265,T:             *NMAP:OS:1:NMAP OS detection probe (1)
        !           659: 2048:64:0:60:W10,N,M265,T:             *NMAP:OS:2:NMAP OS detection probe (2)
        !           660: 3072:64:0:60:W10,N,M265,T:             *NMAP:OS:3:NMAP OS detection probe (3)
        !           661: 4096:64:0:60:W10,N,M265,T:             *NMAP:OS:4:NMAP OS detection probe (4)
        !           662: 
        !           663: 32767:64:0:40:.:                       *NAST:::NASTsyn scan
        !           664: 
        !           665: # Requires quirks support
        !           666: # 12345:255:0:40:.:A:-p0f:sendsyn utility
        !           667: 
        !           668: 
        !           669: #####################################
        !           670: # Generic signatures - just in case #
        !           671: #####################################
        !           672: 
        !           673: #*:64:1:60:M*,N,W*,N,N,T:              @FreeBSD:4.0-4.9::FreeBSD 4.x/5.x
        !           674: #*:64:1:60:M*,N,W*,N,N,T:              @FreeBSD:5.0-5.1::FreeBSD 4.x/5.x
        !           675: 
        !           676: *:128:1:52:M*,N,W0,N,N,S:              @Windows:XP:RFC1323:Windows XP/2000 (RFC1323 no tstamp)
        !           677: *:128:1:52:M*,N,W0,N,N,S:              @Windows:2000:RFC1323:Windows XP/2000 (RFC1323 no tstamp)
        !           678: *:128:1:52:M*,N,W*,N,N,S:              @Windows:XP:RFC1323:Windows XP/2000 (RFC1323 no tstamp)
        !           679: *:128:1:52:M*,N,W*,N,N,S:              @Windows:2000:RFC1323:Windows XP/2000 (RFC1323 no tstamp)
        !           680: *:128:1:64:M*,N,W0,N,N,T0,N,N,S:       @Windows:XP:RFC1323:Windows XP/2000 (RFC1323)
        !           681: *:128:1:64:M*,N,W0,N,N,T0,N,N,S:       @Windows:2000:RFC1323:Windows XP/2000 (RFC1323)
        !           682: *:128:1:64:M*,N,W*,N,N,T0,N,N,S:       @Windows:XP:RFC1323:Windows XP (RFC1323, w+)
        !           683: *:128:1:48:M536,N,N,S:                 @Windows:98::Windows 98
        !           684: *:128:1:48:M*,N,N,S:                   @Windows:XP::Windows XP/2000
        !           685: *:128:1:48:M*,N,N,S:                   @Windows:2000::Windows XP/2000
        !           686: 
        !           687: 

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