1/* $Id: policy_token.l,v 1.10.4.1 2005/05/07 14:30:38 manubsd Exp $ */
2
3/*
4 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32%{
33#ifdef HAVE_CONFIG_H
34#include "config.h"
35#endif
36
37#include <sys/types.h>
38#include <sys/param.h>
39#include <sys/socket.h>
40#include <net/pfkeyv2.h>
41#include <netinet/in.h>
42#ifdef HAVE_NETINET6_IPSEC
43#  include <netinet6/ipsec.h>
44#else
45#  include <netinet/ipsec.h>
46#endif
47
48#include <stdlib.h>
49#include <limits.h>
50#include <string.h>
51#include <unistd.h>
52#include <errno.h>
53
54#include "libpfkey.h"
55
56#include "y.tab.h"
57#define yylval __libipseclval	/* XXX */
58
59int yylex (void);
60%}
61
62%option noyywrap
63%option nounput
64
65/* common section */
66nl		\n
67ws		[ \t]+
68digit		[0-9]
69hexdigit	[0-9A-Fa-f]
70special		[()+\|\?\*,]
71dot		\.
72comma		\,
73hyphen		\-
74colon		\:
75slash		\/
76bcl		\{
77ecl		\}
78blcl		\[
79elcl		\]
80percent		\%
81semi		\;
82plus	\+
83usec		{dot}{digit}{1,6}
84comment		\#.*
85ccomment	"/*"
86bracketstring	\<[^>]*\>
87quotedstring	\"[^"]*\"
88decstring	{digit}+
89hexpair		{hexdigit}{hexdigit}
90hexstring	0[xX]{hexdigit}+
91octetstring	{octet}({dot}{octet})+
92ipaddress	[a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
93
94%%
95
96in		{ yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
97out		{ yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
98fwd		{
99#ifdef HAVE_POLICY_FWD
100		  yylval.num = IPSEC_DIR_FWD; return(DIR);
101#else
102		  yylval.num = IPSEC_DIR_INBOUND; return(DIR);
103#endif
104		}
105
106priority	{ return(PRIORITY); }
107prio	{ return(PRIORITY); }
108low	{ yylval.num32 = PRIORITY_LOW; return(PRIO_BASE); }
109def { yylval.num32 = PRIORITY_DEFAULT; return(PRIO_BASE); }
110high	{ yylval.num32 = PRIORITY_HIGH; return(PRIO_BASE); }
111{plus}	{ return(PLUS); }
112{decstring}	{
113			yylval.val.len = strlen(yytext);
114			yylval.val.buf = yytext;
115			return(PRIO_OFFSET);
116}
117
118discard		{ yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
119generate	{ yylval.num = IPSEC_POLICY_GENERATE; return(ACTION); }
120none		{ yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
121ipsec		{ yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
122bypass		{ yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
123entrust		{ yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
124
125esp		{ yylval.num = IPPROTO_ESP; return(PROTOCOL); }
126ah		{ yylval.num = IPPROTO_AH; return(PROTOCOL); }
127ipcomp		{ yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
128
129transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
130tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
131
132me		{ return(ME); }
133any		{ return(ANY); }
134
135default		{ yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
136use		{ yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
137require		{ yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
138unique{colon}{decstring} {
139			yylval.val.len = strlen(yytext + 7);
140			yylval.val.buf = yytext + 7;
141			return(LEVEL_SPECIFY);
142		}
143unique		{ yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); }
144{slash}		{ return(SLASH); }
145
146{ipaddress}	{
147			yylval.val.len = strlen(yytext);
148			yylval.val.buf = yytext;
149			return(IPADDRESS);
150		}
151
152{hyphen}	{ return(HYPHEN); }
153
154{blcl}{decstring}{elcl} {
155			/* Remove leading '[' and trailing ']' */
156			yylval.val.buf = yytext + 1;
157			yylval.val.len = strlen(yytext) - 2;
158
159			return(PORT);
160		}
161
162{ws}		{ ; }
163{nl}		{ ; }
164
165%%
166
167void __policy__strbuffer__init__ (char *);
168void __policy__strbuffer__free__ (void);
169
170static YY_BUFFER_STATE strbuffer;
171
172void
173__policy__strbuffer__init__(msg)
174	char *msg;
175{
176	if (YY_CURRENT_BUFFER)
177		yy_delete_buffer(YY_CURRENT_BUFFER);
178	strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg);
179	yy_switch_to_buffer(strbuffer);
180
181	return;
182}
183
184void
185__policy__strbuffer__free__()
186{
187	yy_delete_buffer(strbuffer);
188
189	return;
190}
191