policy_token.l revision 78064 
1/*	$FreeBSD: head/lib/libipsec/policy_token.l 78064 2001-06-11 12:39:29Z ume $	*/
2/*	$KAME: policy_token.l,v 1.11 2000/12/01 10:08:29 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#ifndef __NetBSD__
50#include "y.tab.h"
51#else
52#include "policy_parse.h"
53#endif
54#define yylval __libipsecyylval	/* XXX */
55
56int yylex __P((void));
57%}
58
59%option noyywrap
60%option nounput
61
62/* common section */
63nl		\n
64ws		[ \t]+
65digit		[0-9]
66hexdigit	[0-9A-Fa-f]
67special		[()+\|\?\*,]
68dot		\.
69comma		\,
70hyphen		\-
71colon		\:
72slash		\/
73bcl		\{
74ecl		\}
75blcl		\[
76elcl		\]
77percent		\%
78semi		\;
79usec		{dot}{digit}{1,6}
80comment		\#.*
81ccomment	"/*"
82bracketstring	\<[^>]*\>
83quotedstring	\"[^"]*\"
84decstring	{digit}+
85hexpair		{hexdigit}{hexdigit}
86hexstring	0[xX]{hexdigit}+
87octetstring	{octet}({dot}{octet})+
88ipaddress	[a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
89
90%%
91
92in		{ yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
93out		{ yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
94
95discard		{ yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
96none		{ yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
97ipsec		{ yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
98bypass		{ yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
99entrust		{ yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
100
101esp		{ yylval.num = IPPROTO_ESP; return(PROTOCOL); }
102ah		{ yylval.num = IPPROTO_AH; return(PROTOCOL); }
103ipcomp		{ yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
104
105transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
106tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
107
108me		{ return(ME); }
109any		{ return(ANY); }
110
111default		{ yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
112use		{ yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
113require		{ yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
114unique{colon}{decstring} {
115			yylval.val.len = strlen(yytext + 7);
116			yylval.val.buf = yytext + 7;
117			return(LEVEL_SPECIFY);
118		}
119unique		{ yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); }
120{slash}		{ return(SLASH); }
121
122{ipaddress}	{
123			yylval.val.len = strlen(yytext);
124			yylval.val.buf = yytext;
125			return(IPADDRESS);
126		}
127
128{hyphen}	{ return(HYPHEN); }
129
130{ws}		{ ; }
131{nl}		{ ; }
132
133%%
134
135void __policy__strbuffer__init__ __P((char *));
136
137void
138__policy__strbuffer__init__(msg)
139	char *msg;
140{
141	YY_BUFFER_STATE yyb;
142
143	yyb = (YY_BUFFER_STATE)yy_scan_string(msg);
144	yy_switch_to_buffer(yyb);
145
146	return;
147}
148
149