1 /* $FreeBSD$ */ 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 } 148 149