Update files for libpcap-1.2.1 import.
[dragonfly.git] / contrib / libpcap / scanner.l
1 %{
2 /*
3  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
4  *      The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that: (1) source code distributions
8  * retain the above copyright notice and this paragraph in its entirety, (2)
9  * distributions including binary code include the above copyright notice and
10  * this paragraph in its entirety in the documentation or other materials
11  * provided with the distribution, and (3) all advertising materials mentioning
12  * features or use of this software display the following acknowledgement:
13  * ``This product includes software developed by the University of California,
14  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
15  * the University nor the names of its contributors may be used to endorse
16  * or promote products derived from this software without specific prior
17  * written permission.
18  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21  */
22
23 #ifndef lint
24 static const char rcsid[] _U_ =
25     "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.112 2008-02-06 10:21:30 guy Exp $ (LBL)";
26 #endif
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #ifdef WIN32
33 #include <pcap-stdinc.h>
34 #else /* WIN32 */
35 #if HAVE_INTTYPES_H
36 #include <inttypes.h>
37 #elif HAVE_STDINT_H
38 #include <stdint.h>
39 #endif
40 #ifdef HAVE_SYS_BITYPES_H
41 #include <sys/bitypes.h>
42 #endif
43 #include <sys/types.h>
44 #endif /* WIN32 */
45
46 #include <ctype.h>
47 #include <string.h>
48
49 #include "pcap-int.h"
50
51 #include "gencode.h"
52 #ifdef INET6
53 #ifdef WIN32
54 #include <pcap-stdinc.h>
55
56 #ifdef __MINGW32__
57 #include "ip6_misc.h"
58 #endif
59 #else /* WIN32 */
60 #include <sys/socket.h> /* for "struct sockaddr" in "struct addrinfo" */
61 #include <netdb.h>      /* for "struct addrinfo" */
62 #endif /* WIN32 */
63
64 /* Workaround for AIX 4.3 */
65 #if !defined(AI_NUMERICHOST)
66 #define AI_NUMERICHOST 0x04
67 #endif
68 #endif /*INET6*/
69 #include <pcap/namedb.h>
70 #include "tokdefs.h"
71
72 #ifdef HAVE_OS_PROTO_H
73 #include "os-proto.h"
74 #endif
75
76 static int stoi(char *);
77 static inline int xdtoi(int);
78
79 #ifdef FLEX_SCANNER
80 #define YY_NO_INPUT
81 #define YY_NO_UNPUT
82 static YY_BUFFER_STATE in_buffer;
83 #else
84 static const char *in_buffer;
85
86 #undef getc
87 #define getc(fp)  (*in_buffer == 0 ? EOF : *in_buffer++)
88 #endif
89
90 #define yylval pcap_lval
91 extern YYSTYPE yylval;
92
93 %}
94
95 N               ([0-9]+|(0X|0x)[0-9A-Fa-f]+)
96 B               ([0-9A-Fa-f][0-9A-Fa-f]?)
97 B2              ([0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f])
98 W               ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?)
99
100 %a 18400
101 %o 21500
102 %e 7600
103 %k 4550
104 %p 27600
105 %n 2000
106
107 V680            {W}:{W}:{W}:{W}:{W}:{W}:{W}:{W}
108
109 V670            ::{W}:{W}:{W}:{W}:{W}:{W}:{W}
110 V671            {W}::{W}:{W}:{W}:{W}:{W}:{W}
111 V672            {W}:{W}::{W}:{W}:{W}:{W}:{W}
112 V673            {W}:{W}:{W}::{W}:{W}:{W}:{W}
113 V674            {W}:{W}:{W}:{W}::{W}:{W}:{W}
114 V675            {W}:{W}:{W}:{W}:{W}::{W}:{W}
115 V676            {W}:{W}:{W}:{W}:{W}:{W}::{W}
116 V677            {W}:{W}:{W}:{W}:{W}:{W}:{W}::
117
118 V660            ::{W}:{W}:{W}:{W}:{W}:{W}
119 V661            {W}::{W}:{W}:{W}:{W}:{W}
120 V662            {W}:{W}::{W}:{W}:{W}:{W}
121 V663            {W}:{W}:{W}::{W}:{W}:{W}
122 V664            {W}:{W}:{W}:{W}::{W}:{W}
123 V665            {W}:{W}:{W}:{W}:{W}::{W}
124 V666            {W}:{W}:{W}:{W}:{W}:{W}::
125
126 V650            ::{W}:{W}:{W}:{W}:{W}
127 V651            {W}::{W}:{W}:{W}:{W}
128 V652            {W}:{W}::{W}:{W}:{W}
129 V653            {W}:{W}:{W}::{W}:{W}
130 V654            {W}:{W}:{W}:{W}::{W}
131 V655            {W}:{W}:{W}:{W}:{W}::
132
133 V640            ::{W}:{W}:{W}:{W}
134 V641            {W}::{W}:{W}:{W}
135 V642            {W}:{W}::{W}:{W}
136 V643            {W}:{W}:{W}::{W}
137 V644            {W}:{W}:{W}:{W}::
138
139 V630            ::{W}:{W}:{W}
140 V631            {W}::{W}:{W}
141 V632            {W}:{W}::{W}
142 V633            {W}:{W}:{W}::
143
144 V620            ::{W}:{W}
145 V621            {W}::{W}
146 V622            {W}:{W}::
147
148 V610            ::{W}
149 V611            {W}::
150
151 V600            ::
152
153 V6604           {W}:{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
154
155 V6504           ::{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
156 V6514           {W}::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
157 V6524           {W}:{W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
158 V6534           {W}:{W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
159 V6544           {W}:{W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
160 V6554           {W}:{W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
161
162 V6404           ::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
163 V6414           {W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
164 V6424           {W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
165 V6434           {W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
166 V6444           {W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
167
168 V6304           ::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N}
169 V6314           {W}::{W}:{W}:{N}\.{N}\.{N}\.{N}
170 V6324           {W}:{W}::{W}:{N}\.{N}\.{N}\.{N}
171 V6334           {W}:{W}:{W}::{N}\.{N}\.{N}\.{N}
172
173 V6204           ::{W}:{W}:{N}\.{N}\.{N}\.{N}
174 V6214           {W}::{W}:{N}\.{N}\.{N}\.{N}
175 V6224           {W}:{W}::{N}\.{N}\.{N}\.{N}
176
177 V6104           ::{W}:{N}\.{N}\.{N}\.{N}
178 V6114           {W}::{N}\.{N}\.{N}\.{N}
179
180 V6004           ::{N}\.{N}\.{N}\.{N}
181
182
183 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})
184
185 MAC             ({B}:{B}:{B}:{B}:{B}:{B}|{B}\-{B}\-{B}\-{B}\-{B}\-{B}|{B}\.{B}\.{B}\.{B}\.{B}\.{B}|{B2}\.{B2}\.{B2}|{B2}{3})
186
187
188
189 %%
190 dst             return DST;
191 src             return SRC;
192
193 link|ether|ppp|slip  return LINK;
194 fddi|tr|wlan    return LINK;
195 arp             return ARP;
196 rarp            return RARP;
197 ip              return IP;
198 sctp            return SCTP;
199 tcp             return TCP;
200 udp             return UDP;
201 icmp            return ICMP;
202 igmp            return IGMP;
203 igrp            return IGRP;
204 pim             return PIM;
205 vrrp            return VRRP;
206 carp            return CARP;
207 radio           return RADIO;
208
209 ip6             {
210 #ifdef INET6
211                 return IPV6;
212 #else
213                 bpf_error("%s not supported", yytext);
214 #endif
215                 }
216 icmp6           {
217 #ifdef INET6
218                 return ICMPV6;
219 #else
220                 bpf_error("%s not supported", yytext);
221 #endif
222                 }
223 ah              return AH;
224 esp             return ESP;
225
226 atalk           return ATALK;
227 aarp            return AARP;
228 decnet          return DECNET;
229 lat             return LAT;
230 sca             return SCA;
231 moprc           return MOPRC;
232 mopdl           return MOPDL;
233
234 iso             return ISO;
235 esis            return ESIS;
236 es-is           return ESIS;
237 isis            return ISIS;
238 is-is           return ISIS;
239 l1              return L1;
240 l2              return L2;
241 iih             return IIH;
242 lsp             return LSP;
243 snp             return SNP;
244 csnp            return CSNP;
245 psnp            return PSNP;
246
247 clnp            return CLNP;
248
249 stp             return STP;
250
251 ipx             return IPX;
252
253 netbeui         return NETBEUI;
254
255 host            return HOST;
256 net             return NET;
257 mask            return NETMASK;
258 port            return PORT;
259 portrange       return PORTRANGE;
260 proto           return PROTO;
261 protochain      {
262 #ifdef NO_PROTOCHAIN
263                   bpf_error("%s not supported", yytext);
264 #else
265                   return PROTOCHAIN;
266 #endif
267                 }
268
269 gateway         return GATEWAY;
270
271 type            return TYPE;
272 subtype         return SUBTYPE;
273 direction|dir   return DIR;
274 address1|addr1  return ADDR1;
275 address2|addr2  return ADDR2;
276 address3|addr3  return ADDR3;
277 address4|addr4  return ADDR4;
278 ra              return RA;
279 ta              return TA;
280
281 less            return LESS;
282 greater         return GREATER;
283 byte            return CBYTE;
284 broadcast       return TK_BROADCAST;
285 multicast       return TK_MULTICAST;
286
287 and|"&&"        return AND;
288 or|"||"         return OR;
289 not             return '!';
290
291 len|length      return LEN;
292 inbound         return INBOUND;
293 outbound        return OUTBOUND;
294
295 vlan            return VLAN;
296 mpls            return MPLS;
297 pppoed          return PPPOED;
298 pppoes          return PPPOES;
299
300 lane            return LANE;
301 llc             return LLC;
302 metac           return METAC;
303 bcc             return BCC;
304 oam             return OAM;
305 oamf4           return OAMF4;
306 oamf4ec         return OAMF4EC;
307 oamf4sc         return OAMF4SC;
308 sc              return SC;
309 ilmic           return ILMIC;
310 vpi             return VPI;
311 vci             return VCI;
312 connectmsg      return CONNECTMSG;
313 metaconnect     return METACONNECT;
314
315 on|ifname       return PF_IFNAME;
316 rset|ruleset    return PF_RSET;
317 rnr|rulenum     return PF_RNR;
318 srnr|subrulenum return PF_SRNR;
319 reason          return PF_REASON;
320 action          return PF_ACTION;
321
322 fisu            return FISU;
323 lssu            return LSSU;
324 lsu             return LSSU;
325 msu             return MSU;
326 sio             return SIO;
327 opc             return OPC;
328 dpc             return DPC;
329 sls             return SLS;
330
331 [ \r\n\t]               ;
332 [+\-*/:\[\]!<>()&|=]    return yytext[0];
333 ">="                    return GEQ;
334 "<="                    return LEQ;
335 "!="                    return NEQ;
336 "=="                    return '=';
337 "<<"                    return LSH;
338 ">>"                    return RSH;
339 ${B}                    { yylval.e = pcap_ether_aton(((char *)yytext)+1);
340                           return AID; }
341 {MAC}                   { yylval.e = pcap_ether_aton((char *)yytext);
342                           return EID; }
343 {N}                     { yylval.i = stoi((char *)yytext); return NUM; }
344 ({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) {
345                         yylval.s = sdup((char *)yytext); return HID; }
346 {V6}                    {
347 #ifdef INET6
348                           struct addrinfo hints, *res;
349                           memset(&hints, 0, sizeof(hints));
350                           hints.ai_family = AF_INET6;
351                           hints.ai_flags = AI_NUMERICHOST;
352                           if (getaddrinfo(yytext, NULL, &hints, &res))
353                                 bpf_error("bogus IPv6 address %s", yytext);
354                           else {
355                                 freeaddrinfo(res);
356                                 yylval.s = sdup((char *)yytext); return HID6;
357                           }
358 #else
359                           bpf_error("IPv6 address %s not supported", yytext);
360 #endif /*INET6*/
361                         }
362 {B}:+({B}:+)+           { bpf_error("bogus ethernet address %s", yytext); }
363 icmptype                { yylval.i = 0; return NUM; }
364 icmpcode                { yylval.i = 1; return NUM; }
365 icmp-echoreply          { yylval.i = 0; return NUM; }
366 icmp-unreach            { yylval.i = 3; return NUM; }
367 icmp-sourcequench       { yylval.i = 4; return NUM; }
368 icmp-redirect           { yylval.i = 5; return NUM; }
369 icmp-echo               { yylval.i = 8; return NUM; }
370 icmp-routeradvert       { yylval.i = 9; return NUM; }
371 icmp-routersolicit      { yylval.i = 10; return NUM; }
372 icmp-timxceed           { yylval.i = 11; return NUM; }
373 icmp-paramprob          { yylval.i = 12; return NUM; }
374 icmp-tstamp             { yylval.i = 13; return NUM; }
375 icmp-tstampreply        { yylval.i = 14; return NUM; }
376 icmp-ireq               { yylval.i = 15; return NUM; }
377 icmp-ireqreply          { yylval.i = 16; return NUM; }
378 icmp-maskreq            { yylval.i = 17; return NUM; }
379 icmp-maskreply          { yylval.i = 18; return NUM; }
380 tcpflags                { yylval.i = 13; return NUM; }
381 tcp-fin                 { yylval.i = 0x01; return NUM; }
382 tcp-syn                 { yylval.i = 0x02; return NUM; }
383 tcp-rst                 { yylval.i = 0x04; return NUM; }
384 tcp-push                { yylval.i = 0x08; return NUM; }
385 tcp-ack                 { yylval.i = 0x10; return NUM; }
386 tcp-urg                 { yylval.i = 0x20; return NUM; }
387 [A-Za-z0-9]([-_.A-Za-z0-9]*[.A-Za-z0-9])? {
388                          yylval.s = sdup((char *)yytext); return ID; }
389 "\\"[^ !()\n\t]+        { yylval.s = sdup((char *)yytext + 1); return ID; }
390 [^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+ {
391                         bpf_error("illegal token: %s", yytext); }
392 .                       { bpf_error("illegal char '%c'", *yytext); }
393 %%
394 void
395 lex_init(buf)
396         const char *buf;
397 {
398 #ifdef FLEX_SCANNER
399         in_buffer = yy_scan_string(buf);
400 #else
401         in_buffer = buf;
402 #endif
403 }
404
405 /*
406  * Do any cleanup necessary after parsing.
407  */
408 void
409 lex_cleanup()
410 {
411 #ifdef FLEX_SCANNER
412         if (in_buffer != NULL)
413                 yy_delete_buffer(in_buffer);
414         in_buffer = NULL;
415 #endif
416 }
417
418 /*
419  * Also define a yywrap.  Note that if we're using flex, it will
420  * define a macro to map this identifier to pcap_wrap.
421  */
422 int
423 yywrap()
424 {
425         return 1;
426 }
427
428 /* Hex digit to integer. */
429 static inline int
430 xdtoi(c)
431         register int c;
432 {
433         if (isdigit(c))
434                 return c - '0';
435         else if (islower(c))
436                 return c - 'a' + 10;
437         else
438                 return c - 'A' + 10;
439 }
440
441 /*
442  * Convert string to integer.  Just like atoi(), but checks for
443  * preceding 0x or 0 and uses hex or octal instead of decimal.
444  */
445 static int
446 stoi(s)
447         char *s;
448 {
449         int base = 10;
450         int n = 0;
451
452         if (*s == '0') {
453                 if (s[1] == 'x' || s[1] == 'X') {
454                         s += 2;
455                         base = 16;
456                 }
457                 else {
458                         base = 8;
459                         s += 1;
460                 }
461         }
462         while (*s)
463                 n = n * base + xdtoi(*s++);
464
465         return n;
466 }