Initial import from FreeBSD RELENG_4:
[games.git] / lib / libipsec / policy_token.l
1 /*      $FreeBSD: src/lib/libipsec/policy_token.l,v 1.2.2.2 2001/07/03 11:01:15 ume Exp $       */
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