Annotation of embedaddon/ipsec-tools/src/libipsec/policy_token.l, revision 1.1.1.1
1.1 misho 1: /* $NetBSD: policy_token.l,v 1.7 2007/07/18 12:07:50 vanhu Exp $ */
2:
3: /* Id: policy_token.l,v 1.12 2005/05/05 12:32:18 manubsd Exp */
4:
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: #ifdef HAVE_CONFIG_H
36: #include "config.h"
37: #endif
38:
39: #include <sys/types.h>
40: #include <sys/param.h>
41: #include <sys/socket.h>
42: #include <net/pfkeyv2.h>
43: #include <netinet/in.h>
44: #include PATH_IPSEC_H
45:
46: #include <stdlib.h>
47: #include <limits.h>
48: #include <string.h>
49: #include <unistd.h>
50: #include <errno.h>
51:
52: #include "libpfkey.h"
53:
54: #if !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(__linux__) && \
55: !defined(__APPLE__) && !defined(__MACH__)
56: #include "y.tab.h"
57: #else
58: #include "policy_parse.h"
59: #endif
60: #define yylval __libipseclval /* XXX */
61:
62: int yylex __P((void));
63: %}
64:
65: %option noyywrap
66: %option nounput
67:
68: /* common section */
69: nl \n
70: ws [ \t]+
71: digit [0-9]
72: hexdigit [0-9A-Fa-f]
73: special [()+\|\?\*,]
74: dot \.
75: comma \,
76: hyphen \-
77: colon \:
78: slash \/
79: bcl \{
80: ecl \}
81: blcl \[
82: elcl \]
83: percent \%
84: semi \;
85: plus \+
86: usec {dot}{digit}{1,6}
87: comment \#.*
88: ccomment "/*"
89: bracketstring \<[^>]*\>
90: quotedstring \"[^"]*\"
91: decstring {digit}+
92: hexpair {hexdigit}{hexdigit}
93: hexstring 0[xX]{hexdigit}+
94: octetstring {octet}({dot}{octet})+
95: ipaddress [a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)?
96:
97: %%
98:
99: in { yylval.num = IPSEC_DIR_INBOUND; return(DIR); }
100: out { yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); }
101: fwd {
102: #ifdef HAVE_POLICY_FWD
103: yylval.num = IPSEC_DIR_FWD; return(DIR);
104: #else
105: yylval.num = IPSEC_DIR_INBOUND; return(DIR);
106: #endif
107: }
108:
109: priority { return(PRIORITY); }
110: prio { return(PRIORITY); }
111: low { yylval.num32 = PRIORITY_LOW; return(PRIO_BASE); }
112: def { yylval.num32 = PRIORITY_DEFAULT; return(PRIO_BASE); }
113: high { yylval.num32 = PRIORITY_HIGH; return(PRIO_BASE); }
114: {plus} { return(PLUS); }
115: {decstring} {
116: yylval.val.len = strlen(yytext);
117: yylval.val.buf = yytext;
118: return(PRIO_OFFSET);
119: }
120:
121: discard { yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); }
122: none { yylval.num = IPSEC_POLICY_NONE; return(ACTION); }
123: ipsec { yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); }
124: bypass { yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); }
125: entrust { yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); }
126:
127: esp { yylval.num = IPPROTO_ESP; return(PROTOCOL); }
128: ah { yylval.num = IPPROTO_AH; return(PROTOCOL); }
129: ipcomp { yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); }
130:
131: transport { yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); }
132: tunnel { yylval.num = IPSEC_MODE_TUNNEL; return(MODE); }
133:
134: me { return(ME); }
135: any { return(ANY); }
136:
137: default { yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); }
138: use { yylval.num = IPSEC_LEVEL_USE; return(LEVEL); }
139: require { yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); }
140: unique{colon}{decstring} {
141: yylval.val.len = strlen(yytext + 7);
142: yylval.val.buf = yytext + 7;
143: return(LEVEL_SPECIFY);
144: }
145: unique { yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); }
146: {slash} { return(SLASH); }
147:
148: {ipaddress} {
149: yylval.val.len = strlen(yytext);
150: yylval.val.buf = yytext;
151: return(IPADDRESS);
152: }
153:
154: {hyphen} { return(HYPHEN); }
155:
156: {blcl}{decstring}{elcl} {
157: /* Remove leading '[' and trailing ']' */
158: yylval.val.buf = yytext + 1;
159: yylval.val.len = strlen(yytext) - 2;
160:
161: return(PORT);
162: }
163:
164: {ws} { ; }
165: {nl} { ; }
166:
167: %%
168:
169: void __policy__strbuffer__init__ __P((char *));
170: void __policy__strbuffer__free__ __P((void));
171:
172: static YY_BUFFER_STATE strbuffer;
173:
174: void
175: __policy__strbuffer__init__(msg)
176: char *msg;
177: {
178: if (YY_CURRENT_BUFFER)
179: yy_delete_buffer(YY_CURRENT_BUFFER);
180: strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg);
181: yy_switch_to_buffer(strbuffer);
182:
183: return;
184: }
185:
186: void
187: __policy__strbuffer__free__()
188: {
189: yy_delete_buffer(strbuffer);
190:
191: return;
192: }
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