policy_token.l revision 122107 
1/*	$FreeBSD: head/lib/libipsec/policy_token.l 122107 2003-11-05 09:41:23Z ume $	*/
2/*	$KAME: policy_token.l,v 1.13 2003/05/09 05:19:55 sakane Exp $	*/
3
4/*
5 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33%{
34#include <sys/types.h>
35#include <sys/param.h>
36#include <sys/socket.h>
37#include <net/route.h>
38#include <net/pfkeyv2.h>
39#include <netkey/keydb.h>
40#include <netinet/in.h>
41#include <netinet6/ipsec.h>
42
43#include <stdlib.h>
44#include <limits.h>
45#include <string.h>
46#include <unistd.h>
47#include <errno.h>
48
49#include "y.tab.h"
50#define yylval __libipsecyylval	/* XXX */
51
52int yylex(void);
53%}
54
55%option noyywrap
56%option nounput
57
58/* common section */
59nl		\n
60ws		[ \t]+
61digit		[0-9]
62hexdigit	[0-9A-Fa-f]
63special		[()+\|\?\*,]
64dot		\.
65comma		\,
66hyphen		\-
67colon		\:
68slash		\/
69bcl		\{
70ecl		\}
71blcl		\[
72elcl		\]
73percent		\%
74semi		\;
75usec		{dot}{digit}{1,6}
76comment		\#.*
77ccomment	"/*"
78bracketstring	\<[^>]*\>
79quotedstring	\"[^"]*\"
80decstring	{digit}+
81hexpair		{hexdigit}{hexdigit}
82hexstring	0[xX]{hexdigit}+
83octetstring	{octet}({dot}{octet})+
84ipaddress	[a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
85
86%%
87
88in		{ yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
89out		{ yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
90
91discard		{ yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
92none		{ yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
93ipsec		{ yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
94bypass		{ yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
95entrust		{ yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
96
97esp		{ yylval.num = IPPROTO_ESP; return(PROTOCOL); }
98ah		{ yylval.num = IPPROTO_AH; return(PROTOCOL); }
99ipcomp		{ yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
100
101transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
102tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
103
104me		{ return(ME); }
105any		{ return(ANY); }
106
107default		{ yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
108use		{ yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
109require		{ yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
110unique{colon}{decstring} {
111			yylval.val.len = strlen(yytext + 7);
112			yylval.val.buf = yytext + 7;
113			return(LEVEL_SPECIFY);
114		}
115unique		{ yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); }
116{slash}		{ return(SLASH); }
117
118{ipaddress}	{
119			yylval.val.len = strlen(yytext);
120			yylval.val.buf = yytext;
121			return(IPADDRESS);
122		}
123
124{hyphen}	{ return(HYPHEN); }
125
126{ws}		{ ; }
127{nl}		{ ; }
128
129%%
130
131void __policy__strbuffer__init__(char *);
132void __policy__strbuffer__free__(void);
133
134static YY_BUFFER_STATE strbuffer;
135
136void
137__policy__strbuffer__init__(msg)
138	char *msg;
139{
140	if (yy_current_buffer)
141		yy_delete_buffer(yy_current_buffer);
142	strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg);
143	yy_switch_to_buffer(strbuffer);
144
145	return;
146}
147
148void
149__policy__strbuffer__free__()
150{
151	yy_delete_buffer(strbuffer);
152
153	return;
154}
155