xref: /freebsd/lib/libipsec/policy_token.l (revision 70fe064ad7cab6c0444b91622f60ec6a462f308a)
1 /*	$FreeBSD$	*/
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 
56 int yylex __P((void));
57 %}
58 
59 %option noyywrap
60 %option nounput
61 
62 /* common section */
63 nl		\n
64 ws		[ \t]+
65 digit		[0-9]
66 hexdigit	[0-9A-Fa-f]
67 special		[()+\|\?\*,]
68 dot		\.
69 comma		\,
70 hyphen		\-
71 colon		\:
72 slash		\/
73 bcl		\{
74 ecl		\}
75 blcl		\[
76 elcl		\]
77 percent		\%
78 semi		\;
79 usec		{dot}{digit}{1,6}
80 comment		\#.*
81 ccomment	"/*"
82 bracketstring	\<[^>]*\>
83 quotedstring	\"[^"]*\"
84 decstring	{digit}+
85 hexpair		{hexdigit}{hexdigit}
86 hexstring	0[xX]{hexdigit}+
87 octetstring	{octet}({dot}{octet})+
88 ipaddress	[a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
89 
90 %%
91 
92 in		{ yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
93 out		{ yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
94 
95 discard		{ yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
96 none		{ yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
97 ipsec		{ yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
98 bypass		{ yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
99 entrust		{ yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
100 
101 esp		{ yylval.num = IPPROTO_ESP; return(PROTOCOL); }
102 ah		{ yylval.num = IPPROTO_AH; return(PROTOCOL); }
103 ipcomp		{ yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
104 
105 transport	{ yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
106 tunnel		{ yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
107 
108 me		{ return(ME); }
109 any		{ return(ANY); }
110 
111 default		{ yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
112 use		{ yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
113 require		{ yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
114 unique{colon}{decstring} {
115 			yylval.val.len = strlen(yytext + 7);
116 			yylval.val.buf = yytext + 7;
117 			return(LEVEL_SPECIFY);
118 		}
119 unique		{ 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 
135 void __policy__strbuffer__init__ __P((char *));
136 
137 void
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