1 /* $FreeBSD$ */ 2 /* $KAME: policy_token.l,v 1.13 2003/05/09 05:19:55 sakane Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the project nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 %{ 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/socket.h> 39 #include <net/route.h> 40 #include <net/pfkeyv2.h> 41 #include <netipsec/keydb.h> 42 #include <netinet/in.h> 43 #include <netipsec/ipsec.h> 44 45 #include <stdlib.h> 46 #include <limits.h> 47 #include <string.h> 48 #include <unistd.h> 49 #include <errno.h> 50 51 #include "y.tab.h" 52 #define yylval __libipsecyylval /* XXX */ 53 54 int yylex(void); 55 %} 56 57 %option noyywrap 58 %option nounput 59 %option noinput 60 61 /* common section */ 62 nl \n 63 ws [ \t]+ 64 digit [0-9] 65 hexdigit [0-9A-Fa-f] 66 special [()+\|\?\*,] 67 dot \. 68 comma \, 69 hyphen \- 70 colon \: 71 slash \/ 72 bcl \{ 73 ecl \} 74 blcl \[ 75 elcl \] 76 percent \% 77 semi \; 78 usec {dot}{digit}{1,6} 79 comment \#.* 80 ccomment "/*" 81 bracketstring \<[^>]*\> 82 quotedstring \"[^"]*\" 83 decstring {digit}+ 84 hexpair {hexdigit}{hexdigit} 85 hexstring 0[xX]{hexdigit}+ 86 octetstring {octet}({dot}{octet})+ 87 ipaddress [a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)? 88 89 %% 90 91 in { yylval.num = IPSEC_DIR_INBOUND; return(DIR); } 92 out { yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); } 93 94 discard { yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); } 95 none { yylval.num = IPSEC_POLICY_NONE; return(ACTION); } 96 ipsec { yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); } 97 bypass { yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); } 98 entrust { yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); } 99 100 esp { yylval.num = IPPROTO_ESP; return(PROTOCOL); } 101 ah { yylval.num = IPPROTO_AH; return(PROTOCOL); } 102 ipcomp { yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); } 103 tcp { yylval.num = IPPROTO_TCP; 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__(char *); 136 void __policy__strbuffer__free__(void); 137 138 static YY_BUFFER_STATE strbuffer; 139 140 void 141 __policy__strbuffer__init__(msg) 142 char *msg; 143 { 144 if (YY_CURRENT_BUFFER) 145 yy_delete_buffer(YY_CURRENT_BUFFER); 146 strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg); 147 yy_switch_to_buffer(strbuffer); 148 149 return; 150 } 151 152 void 153 __policy__strbuffer__free__() 154 { 155 yy_delete_buffer(strbuffer); 156 157 return; 158 } 159