1996-08-19 20:36:34 +00:00
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%{
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/*
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1998-09-15 19:31:43 +00:00
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* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
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1996-08-19 20:36:34 +00:00
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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2000-01-30 00:43:38 +00:00
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*
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* $FreeBSD$
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1996-08-19 20:36:34 +00:00
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*/
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#ifndef lint
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2004-03-31 09:15:09 +00:00
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static const char rcsid[] _U_ =
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2007-10-16 02:07:55 +00:00
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"@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.99.2.9 2007/06/11 09:52:05 guy Exp $ (LBL)";
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2001-04-03 04:32:48 +00:00
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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1996-08-19 20:36:34 +00:00
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#endif
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#include <ctype.h>
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2000-01-30 00:43:38 +00:00
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#include <string.h>
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1996-08-19 20:36:34 +00:00
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#include "pcap-int.h"
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#include "gencode.h"
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2000-01-30 00:43:38 +00:00
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#ifdef INET6
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2004-03-31 09:15:09 +00:00
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#ifdef WIN32
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#include <pcap-stdinc.h>
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#ifdef __MINGW32__
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#include "IP6_misc.h"
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#endif
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#else /* WIN32 */
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#include <sys/socket.h> /* for "struct sockaddr" in "struct addrinfo" */
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#include <netdb.h> /* for "struct addrinfo" */
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#endif /* WIN32 */
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2001-04-03 04:32:48 +00:00
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/* Workaround for AIX 4.3 */
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#if !defined(AI_NUMERICHOST)
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#define AI_NUMERICHOST 0x04
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#endif
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2000-01-30 00:43:38 +00:00
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#endif /*INET6*/
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2004-03-31 09:15:09 +00:00
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#include <pcap-namedb.h>
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1996-08-19 20:36:34 +00:00
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#include "tokdefs.h"
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#ifdef HAVE_OS_PROTO_H
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#include "os-proto.h"
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#endif
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static int stoi(char *);
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static inline int xdtoi(int);
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#ifdef FLEX_SCANNER
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1997-05-27 00:05:23 +00:00
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#define YY_NO_UNPUT
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2001-04-03 04:32:48 +00:00
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static YY_BUFFER_STATE in_buffer;
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1996-08-19 20:36:34 +00:00
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#else
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2001-04-03 04:32:48 +00:00
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static char *in_buffer;
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1996-08-19 20:36:34 +00:00
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#undef getc
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#define getc(fp) (*in_buffer == 0 ? EOF : *in_buffer++)
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#endif
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extern YYSTYPE yylval;
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%}
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N ([0-9]+|(0X|0x)[0-9A-Fa-f]+)
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B ([0-9A-Fa-f][0-9A-Fa-f]?)
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2000-01-30 00:43:38 +00:00
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W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?)
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2007-10-16 02:07:55 +00:00
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%a 18400
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%o 21500
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%e 7600
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%k 4550
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%p 27600
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2001-04-03 04:32:48 +00:00
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%n 2000
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2000-01-30 00:43:38 +00:00
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V680 {W}:{W}:{W}:{W}:{W}:{W}:{W}:{W}
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V670 ::{W}:{W}:{W}:{W}:{W}:{W}:{W}
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V671 {W}::{W}:{W}:{W}:{W}:{W}:{W}
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V672 {W}:{W}::{W}:{W}:{W}:{W}:{W}
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V673 {W}:{W}:{W}::{W}:{W}:{W}:{W}
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V674 {W}:{W}:{W}:{W}::{W}:{W}:{W}
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V675 {W}:{W}:{W}:{W}:{W}::{W}:{W}
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V676 {W}:{W}:{W}:{W}:{W}:{W}::{W}
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V677 {W}:{W}:{W}:{W}:{W}:{W}:{W}::
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V660 ::{W}:{W}:{W}:{W}:{W}:{W}
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V661 {W}::{W}:{W}:{W}:{W}:{W}
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V662 {W}:{W}::{W}:{W}:{W}:{W}
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V663 {W}:{W}:{W}::{W}:{W}:{W}
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V664 {W}:{W}:{W}:{W}::{W}:{W}
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V665 {W}:{W}:{W}:{W}:{W}::{W}
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V666 {W}:{W}:{W}:{W}:{W}:{W}::
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V650 ::{W}:{W}:{W}:{W}:{W}
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V651 {W}::{W}:{W}:{W}:{W}
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V652 {W}:{W}::{W}:{W}:{W}
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V653 {W}:{W}:{W}::{W}:{W}
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V654 {W}:{W}:{W}:{W}::{W}
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V655 {W}:{W}:{W}:{W}:{W}::
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V640 ::{W}:{W}:{W}:{W}
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V641 {W}::{W}:{W}:{W}
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V642 {W}:{W}::{W}:{W}
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V643 {W}:{W}:{W}::{W}
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V644 {W}:{W}:{W}:{W}::
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V630 ::{W}:{W}:{W}
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V631 {W}::{W}:{W}
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V632 {W}:{W}::{W}
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V633 {W}:{W}:{W}::
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V620 ::{W}:{W}
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V621 {W}::{W}
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V622 {W}:{W}::
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V610 ::{W}
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V611 {W}::
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V600 ::
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V6604 {W}:{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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1996-08-19 20:36:34 +00:00
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2000-01-30 00:43:38 +00:00
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V6504 ::{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6514 {W}::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6524 {W}:{W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6534 {W}:{W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6544 {W}:{W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
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V6554 {W}:{W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
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V6404 ::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6414 {W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6424 {W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6434 {W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
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V6444 {W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
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V6304 ::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6314 {W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6324 {W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
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V6334 {W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
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V6204 ::{W}:{W}:{N}\.{N}\.{N}\.{N}
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V6214 {W}::{W}:{N}\.{N}\.{N}\.{N}
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V6224 {W}:{W}::{N}\.{N}\.{N}\.{N}
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V6104 ::{W}:{N}\.{N}\.{N}\.{N}
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V6114 {W}::{N}\.{N}\.{N}\.{N}
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V6004 ::{N}\.{N}\.{N}\.{N}
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V6 ({V680}|{V670}|{V671}|{V672}|{V673}|{V674}|{V675}|{V676}|{V677}|{V660}|{V661}|{V662}|{V663}|{V664}|{V665}|{V666}|{V650}|{V651}|{V652}|{V653}|{V654}|{V655}|{V640}|{V641}|{V642}|{V643}|{V644}|{V630}|{V631}|{V632}|{V633}|{V620}|{V621}|{V622}|{V610}|{V611}|{V600}|{V6604}|{V6504}|{V6514}|{V6524}|{V6534}|{V6544}|{V6554}|{V6404}|{V6414}|{V6424}|{V6434}|{V6444}|{V6304}|{V6314}|{V6324}|{V6334}|{V6204}|{V6214}|{V6224}|{V6104}|{V6114}|{V6004})
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1996-08-19 20:36:34 +00:00
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%%
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dst return DST;
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src return SRC;
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link|ether|ppp|slip return LINK;
|
2004-03-31 09:15:09 +00:00
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fddi|tr|wlan return LINK;
|
1996-08-19 20:36:34 +00:00
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arp return ARP;
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rarp return RARP;
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|
ip return IP;
|
2002-06-21 01:38:14 +00:00
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sctp return SCTP;
|
1996-08-19 20:36:34 +00:00
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tcp return TCP;
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udp return UDP;
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|
icmp return ICMP;
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igmp return IGMP;
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igrp return IGRP;
|
2000-01-30 00:43:38 +00:00
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pim return PIM;
|
2002-06-21 01:38:14 +00:00
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|
vrrp return VRRP;
|
2005-07-11 03:43:25 +00:00
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radio return RADIO;
|
2000-01-30 00:43:38 +00:00
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2002-06-21 01:38:14 +00:00
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ip6 {
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#ifdef INET6
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|
return IPV6;
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#else
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|
bpf_error("%s not supported", yytext);
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|
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|
#endif
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}
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icmp6 {
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|
#ifdef INET6
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|
return ICMPV6;
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#else
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|
bpf_error("%s not supported", yytext);
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#endif
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}
|
2000-01-30 00:43:38 +00:00
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ah return AH;
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esp return ESP;
|
1996-08-19 20:36:34 +00:00
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atalk return ATALK;
|
2001-04-03 04:32:48 +00:00
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|
aarp return AARP;
|
1996-08-19 20:36:34 +00:00
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decnet return DECNET;
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lat return LAT;
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|
sca return SCA;
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moprc return MOPRC;
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|
mopdl return MOPDL;
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|
1996-08-21 20:01:08 +00:00
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iso return ISO;
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esis return ESIS;
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|
es-is return ESIS;
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isis return ISIS;
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|
is-is return ISIS;
|
2004-03-31 09:15:09 +00:00
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|
l1 return L1;
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l2 return L2;
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|
iih return IIH;
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|
lsp return LSP;
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|
snp return SNP;
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csnp return CSNP;
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psnp return PSNP;
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|
2001-04-03 04:32:48 +00:00
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clnp return CLNP;
|
1996-08-21 20:01:08 +00:00
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|
2002-06-21 01:38:14 +00:00
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stp return STP;
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ipx return IPX;
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|
netbeui return NETBEUI;
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|
1996-08-19 20:36:34 +00:00
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|
host return HOST;
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|
net return NET;
|
2004-03-31 09:15:09 +00:00
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|
mask return NETMASK;
|
1996-08-19 20:36:34 +00:00
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|
port return PORT;
|
2005-07-11 03:43:25 +00:00
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|
portrange return PORTRANGE;
|
1996-08-19 20:36:34 +00:00
|
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|
proto return PROTO;
|
2000-01-30 00:43:38 +00:00
|
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|
protochain {
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|
|
#ifdef NO_PROTOCHAIN
|
|
|
|
bpf_error("%s not supported", yytext);
|
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|
#else
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|
return PROTOCHAIN;
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|
#endif
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|
}
|
1996-08-19 20:36:34 +00:00
|
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|
gateway return GATEWAY;
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|
less return LESS;
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|
greater return GREATER;
|
2004-03-31 09:15:09 +00:00
|
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|
byte return CBYTE;
|
1996-08-19 20:36:34 +00:00
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|
broadcast return TK_BROADCAST;
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|
multicast return TK_MULTICAST;
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and|"&&" return AND;
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or|"||" return OR;
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|
not return '!';
|
|
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|
len|length return LEN;
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|
inbound return INBOUND;
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|
outbound return OUTBOUND;
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|
2001-04-03 04:32:48 +00:00
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|
vlan return VLAN;
|
2005-05-29 18:09:04 +00:00
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|
mpls return MPLS;
|
2006-09-04 19:54:21 +00:00
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|
pppoed return PPPOED;
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|
|
pppoes return PPPOES;
|
2001-04-03 04:32:48 +00:00
|
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|
2004-03-31 09:15:09 +00:00
|
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|
lane return LANE;
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|
llc return LLC;
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|
metac return METAC;
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|
|
bcc return BCC;
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|
oam return OAM;
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|
oamf4 return OAMF4;
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|
oamf4ec return OAMF4EC;
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|
oamf4sc return OAMF4SC;
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|
sc return SC;
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|
ilmic return ILMIC;
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|
vpi return VPI;
|
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|
vci return VCI;
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|
connectmsg return CONNECTMSG;
|
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|
metaconnect return METACONNECT;
|
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|
on|ifname return PF_IFNAME;
|
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|
rset|ruleset return PF_RSET;
|
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|
rnr|rulenum return PF_RNR;
|
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|
srnr|subrulenum return PF_SRNR;
|
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|
|
reason return PF_REASON;
|
|
|
|
action return PF_ACTION;
|
|
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|
|
2007-10-16 02:07:55 +00:00
|
|
|
fisu return FISU;
|
|
|
|
lssu return LSSU;
|
|
|
|
lsu return LSSU;
|
|
|
|
msu return MSU;
|
2005-07-11 03:43:25 +00:00
|
|
|
sio return SIO;
|
|
|
|
opc return OPC;
|
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|
dpc return DPC;
|
|
|
|
sls return SLS;
|
|
|
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|
2004-03-31 09:15:09 +00:00
|
|
|
[ \r\n\t] ;
|
1996-08-19 20:36:34 +00:00
|
|
|
[+\-*/:\[\]!<>()&|=] return yytext[0];
|
|
|
|
">=" return GEQ;
|
|
|
|
"<=" return LEQ;
|
|
|
|
"!=" return NEQ;
|
|
|
|
"==" return '=';
|
|
|
|
"<<" return LSH;
|
|
|
|
">>" return RSH;
|
2002-06-21 01:38:14 +00:00
|
|
|
${B} { yylval.e = pcap_ether_aton(((char *)yytext)+1);
|
|
|
|
return AID; }
|
1996-08-19 20:36:34 +00:00
|
|
|
{N} { yylval.i = stoi((char *)yytext); return NUM; }
|
|
|
|
({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) {
|
1998-09-15 19:31:43 +00:00
|
|
|
yylval.s = sdup((char *)yytext); return HID; }
|
1996-08-19 20:36:34 +00:00
|
|
|
{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext);
|
|
|
|
return EID; }
|
2000-01-30 00:43:38 +00:00
|
|
|
{V6} {
|
|
|
|
#ifdef INET6
|
|
|
|
struct addrinfo hints, *res;
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
|
|
hints.ai_family = AF_INET6;
|
|
|
|
hints.ai_flags = AI_NUMERICHOST;
|
|
|
|
if (getaddrinfo(yytext, NULL, &hints, &res))
|
|
|
|
bpf_error("bogus IPv6 address %s", yytext);
|
|
|
|
else {
|
2004-03-31 09:15:09 +00:00
|
|
|
yylval.s = sdup((char *)yytext); return HID6;
|
2000-01-30 00:43:38 +00:00
|
|
|
}
|
|
|
|
#else
|
|
|
|
bpf_error("IPv6 address %s not supported", yytext);
|
|
|
|
#endif /*INET6*/
|
|
|
|
}
|
1996-08-19 20:36:34 +00:00
|
|
|
{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); }
|
2002-06-21 01:38:14 +00:00
|
|
|
icmptype { yylval.i = 0; return NUM; }
|
|
|
|
icmpcode { yylval.i = 1; return NUM; }
|
|
|
|
icmp-echoreply { yylval.i = 0; return NUM; }
|
|
|
|
icmp-unreach { yylval.i = 3; return NUM; }
|
|
|
|
icmp-sourcequench { yylval.i = 4; return NUM; }
|
|
|
|
icmp-redirect { yylval.i = 5; return NUM; }
|
|
|
|
icmp-echo { yylval.i = 8; return NUM; }
|
|
|
|
icmp-routeradvert { yylval.i = 9; return NUM; }
|
|
|
|
icmp-routersolicit { yylval.i = 10; return NUM; }
|
|
|
|
icmp-timxceed { yylval.i = 11; return NUM; }
|
|
|
|
icmp-paramprob { yylval.i = 12; return NUM; }
|
|
|
|
icmp-tstamp { yylval.i = 13; return NUM; }
|
|
|
|
icmp-tstampreply { yylval.i = 14; return NUM; }
|
|
|
|
icmp-ireq { yylval.i = 15; return NUM; }
|
|
|
|
icmp-ireqreply { yylval.i = 16; return NUM; }
|
|
|
|
icmp-maskreq { yylval.i = 17; return NUM; }
|
|
|
|
icmp-maskreply { yylval.i = 18; return NUM; }
|
|
|
|
tcpflags { yylval.i = 13; return NUM; }
|
|
|
|
tcp-fin { yylval.i = 0x01; return NUM; }
|
|
|
|
tcp-syn { yylval.i = 0x02; return NUM; }
|
|
|
|
tcp-rst { yylval.i = 0x04; return NUM; }
|
|
|
|
tcp-push { yylval.i = 0x08; return NUM; }
|
|
|
|
tcp-ack { yylval.i = 0x10; return NUM; }
|
|
|
|
tcp-urg { yylval.i = 0x20; return NUM; }
|
|
|
|
[A-Za-z0-9]([-_.A-Za-z0-9]*[.A-Za-z0-9])? {
|
1998-09-15 19:31:43 +00:00
|
|
|
yylval.s = sdup((char *)yytext); return ID; }
|
1996-08-19 20:36:34 +00:00
|
|
|
"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; }
|
2002-06-21 01:38:14 +00:00
|
|
|
[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+ {
|
|
|
|
bpf_error("illegal token: %s", yytext); }
|
1996-08-19 20:36:34 +00:00
|
|
|
. { bpf_error("illegal char '%c'", *yytext); }
|
|
|
|
%%
|
|
|
|
void
|
|
|
|
lex_init(buf)
|
2007-10-16 02:07:55 +00:00
|
|
|
const char *buf;
|
1996-08-19 20:36:34 +00:00
|
|
|
{
|
2001-04-03 04:32:48 +00:00
|
|
|
#ifdef FLEX_SCANNER
|
|
|
|
in_buffer = yy_scan_string(buf);
|
|
|
|
#else
|
1996-08-19 20:36:34 +00:00
|
|
|
in_buffer = buf;
|
2001-04-03 04:32:48 +00:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do any cleanup necessary after parsing.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
lex_cleanup()
|
|
|
|
{
|
|
|
|
#ifdef FLEX_SCANNER
|
|
|
|
if (in_buffer != NULL)
|
|
|
|
yy_delete_buffer(in_buffer);
|
|
|
|
in_buffer = NULL;
|
|
|
|
#endif
|
1996-08-19 20:36:34 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Also define a yywrap. Note that if we're using flex, it will
|
|
|
|
* define a macro to map this identifier to pcap_wrap.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
yywrap()
|
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Hex digit to integer. */
|
|
|
|
static inline int
|
|
|
|
xdtoi(c)
|
|
|
|
register int c;
|
|
|
|
{
|
|
|
|
if (isdigit(c))
|
|
|
|
return c - '0';
|
|
|
|
else if (islower(c))
|
|
|
|
return c - 'a' + 10;
|
|
|
|
else
|
|
|
|
return c - 'A' + 10;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Convert string to integer. Just like atoi(), but checks for
|
|
|
|
* preceding 0x or 0 and uses hex or octal instead of decimal.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
stoi(s)
|
|
|
|
char *s;
|
|
|
|
{
|
|
|
|
int base = 10;
|
|
|
|
int n = 0;
|
|
|
|
|
|
|
|
if (*s == '0') {
|
|
|
|
if (s[1] == 'x' || s[1] == 'X') {
|
|
|
|
s += 2;
|
|
|
|
base = 16;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
base = 8;
|
|
|
|
s += 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
while (*s)
|
|
|
|
n = n * base + xdtoi(*s++);
|
|
|
|
|
|
|
|
return n;
|
|
|
|
}
|