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