1/*	$KAME: policy_token.l,v 1.13 2003/05/09 05:19:55 sakane Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34%{
35#include <sys/types.h>
36#include <sys/param.h>
37#include <sys/socket.h>
38#include <net/route.h>
39#include <net/pfkeyv2.h>
40#include <netipsec/keydb.h>
41#include <netinet/in.h>
42#include <netipsec/ipsec.h>
43
44#include <stdlib.h>
45#include <limits.h>
46#include <string.h>
47#include <unistd.h>
48#include <errno.h>
49
50#include "y.tab.h"
51#define yylval __libipsecyylval	/* XXX */
52
53int yylex(void);
54%}
55
56%option noyywrap
57%option nounput
58%option noinput
59
60/* common section */
61nl		\n
62ws		[ \t]+
63digit		[0-9]
64hexdigit	[0-9A-Fa-f]
65special		[()+\|\?\*,]
66dot		\.
67comma		\,
68hyphen		\-
69colon		\:
70slash		\/
71bcl		\{
72ecl		\}
73blcl		\[
74elcl		\]
75percent		\%
76semi		\;
77usec		{dot}{digit}{1,6}
78comment		\#.*
79ccomment	"/*"
80bracketstring	\<[^>]*\>
81quotedstring	\"[^"]*\"
82decstring	{digit}+
83hexpair		{hexdigit}{hexdigit}
84hexstring	0[xX]{hexdigit}+
85octetstring	{octet}({dot}{octet})+
86ipaddress	[a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
87
88%%
89
90in		{ yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
91out		{ yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
92
93discard		{ yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
94none		{ yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
95ipsec		{ yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
96bypass		{ yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
97entrust		{ yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
98
99esp		{ yylval.num = IPPROTO_ESP; return(PROTOCOL); }
100ah		{ yylval.num = IPPROTO_AH; return(PROTOCOL); }
101ipcomp		{ yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
102tcp		{ yylval.num = IPPROTO_TCP; return(PROTOCOL); }
103
104transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
105tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
106
107me		{ return(ME); }
108any		{ return(ANY); }
109
110default		{ yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
111use		{ yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
112require		{ yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
113unique{colon}{decstring} {
114			yylval.val.len = strlen(yytext + 7);
115			yylval.val.buf = yytext + 7;
116			return(LEVEL_SPECIFY);
117		}
118unique		{ yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); }
119{slash}		{ return(SLASH); }
120
121{ipaddress}	{
122			yylval.val.len = strlen(yytext);
123			yylval.val.buf = yytext;
124			return(IPADDRESS);
125		}
126
127{hyphen}	{ return(HYPHEN); }
128
129{ws}		{ ; }
130{nl}		{ ; }
131
132%%
133
134void __policy__strbuffer__init__(char *);
135void __policy__strbuffer__free__(void);
136
137static YY_BUFFER_STATE strbuffer;
138
139void
140__policy__strbuffer__init__(char *msg)
141{
142	if (YY_CURRENT_BUFFER)
143		yy_delete_buffer(YY_CURRENT_BUFFER);
144	strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg);
145	yy_switch_to_buffer(strbuffer);
146
147	return;
148}
149
150void
151__policy__strbuffer__free__(void)
152{
153	yy_delete_buffer(strbuffer);
154
155	return;
156}
157