1 /* $KAME: policy_token.l,v 1.13 2003/05/09 05:19:55 sakane Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 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 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/socket.h> 38 #include <net/route.h> 39 #include <net/pfkeyv2.h> 40 #include <netipsec/keydb.h> 41 #include <netinet/in.h> 42 #include <netipsec/ipsec.h> 43 44 #include <stdlib.h> 45 #include <limits.h> 46 #include <string.h> 47 #include <unistd.h> 48 #include <errno.h> 49 50 #include "y.tab.h" 51 #define yylval __libipsecyylval /* XXX */ 52 53 int yylex(void); 54 %} 55 56 %option noyywrap 57 %option nounput 58 %option noinput 59 60 /* common section */ 61 nl \n 62 ws [ \t]+ 63 digit [0-9] 64 hexdigit [0-9A-Fa-f] 65 special [()+\|\?\*,] 66 dot \. 67 comma \, 68 hyphen \- 69 colon \: 70 slash \/ 71 bcl \{ 72 ecl \} 73 blcl \[ 74 elcl \] 75 percent \% 76 semi \; 77 usec {dot}{digit}{1,6} 78 comment \#.* 79 ccomment "/*" 80 bracketstring \<[^>]*\> 81 quotedstring \"[^"]*\" 82 decstring {digit}+ 83 hexpair {hexdigit}{hexdigit} 84 hexstring 0[xX]{hexdigit}+ 85 octetstring {octet}({dot}{octet})+ 86 ipaddress [a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)? 87 88 %% 89 90 in { yylval.num = IPSEC_DIR_INBOUND; return(DIR); } 91 out { yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); } 92 93 discard { yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); } 94 none { yylval.num = IPSEC_POLICY_NONE; return(ACTION); } 95 ipsec { yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); } 96 bypass { yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); } 97 entrust { yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); } 98 99 esp { yylval.num = IPPROTO_ESP; return(PROTOCOL); } 100 ah { yylval.num = IPPROTO_AH; return(PROTOCOL); } 101 ipcomp { yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); } 102 tcp { yylval.num = IPPROTO_TCP; return(PROTOCOL); } 103 104 transport { yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); } 105 tunnel { yylval.num = IPSEC_MODE_TUNNEL; return(MODE); } 106 107 me { return(ME); } 108 any { return(ANY); } 109 110 default { yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); } 111 use { yylval.num = IPSEC_LEVEL_USE; return(LEVEL); } 112 require { yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); } 113 unique{colon}{decstring} { 114 yylval.val.len = strlen(yytext + 7); 115 yylval.val.buf = yytext + 7; 116 return(LEVEL_SPECIFY); 117 } 118 unique { yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); } 119 {slash} { return(SLASH); } 120 121 {ipaddress} { 122 yylval.val.len = strlen(yytext); 123 yylval.val.buf = yytext; 124 return(IPADDRESS); 125 } 126 127 {hyphen} { return(HYPHEN); } 128 129 {ws} { ; } 130 {nl} { ; } 131 132 %% 133 134 void __policy__strbuffer__init__(char *); 135 void __policy__strbuffer__free__(void); 136 137 static YY_BUFFER_STATE strbuffer; 138 139 void 140 __policy__strbuffer__init__(char *msg) 141 { 142 if (YY_CURRENT_BUFFER) 143 yy_delete_buffer(YY_CURRENT_BUFFER); 144 strbuffer = (YY_BUFFER_STATE)yy_scan_string(msg); 145 yy_switch_to_buffer(strbuffer); 146 147 return; 148 } 149 150 void 151 __policy__strbuffer__free__(void) 152 { 153 yy_delete_buffer(strbuffer); 154 155 return; 156 } 157