1 /* 2 * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 %{ 33 #include <sys/types.h> 34 #include <sys/param.h> 35 #include <sys/socket.h> 36 #include <net/route.h> 37 #include <net/pfkeyv2.h> 38 #include <netkey/keydb.h> 39 #include <netkey/key_debug.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 #include "y.tab.h" 50 #define yylval __libipsecyylval /* XXX */ 51 %} 52 53 %option noyywrap 54 55 /* common section */ 56 nl \n 57 ws [ \t]+ 58 digit [0-9] 59 letter [0-9A-Za-z] 60 hexdigit [0-9A-Fa-f] 61 special [()+\|\?\*,] 62 dot \. 63 comma \, 64 hyphen \- 65 colon \: 66 slash \/ 67 bcl \{ 68 ecl \} 69 blcl \[ 70 elcl \] 71 percent \% 72 semi \; 73 usec {dot}{digit}{1,6} 74 comment \#.* 75 ccomment "/*" 76 bracketstring \<[^>]*\> 77 quotedstring \"[^"]*\" 78 decstring {digit}+ 79 hexpair {hexdigit}{hexdigit} 80 hexstring 0[xX]{hexdigit}+ 81 octetstring {octet}({dot}{octet})+ 82 ipaddress [a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%{letter}{letter}+)? 83 name {letter}(({letter}|{digit}|{hyphen})*({letter}|{digit}))* 84 hostname {name}(({dot}{name})+{dot}?)? 85 86 %% 87 88 in { yylval.num = IPSEC_DIR_INBOUND; return(DIR); } 89 out { yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); } 90 91 discard { yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); } 92 none { yylval.num = IPSEC_POLICY_NONE; return(ACTION); } 93 ipsec { yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); } 94 bypass { yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); } 95 entrust { yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); } 96 97 esp { yylval.num = IPPROTO_ESP; return(PROTOCOL); } 98 ah { yylval.num = IPPROTO_AH; return(PROTOCOL); } 99 ipcomp { yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); } 100 101 transport { yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); } 102 tunnel { yylval.num = IPSEC_MODE_TUNNEL; return(MODE); } 103 104 me { return(ME); } 105 any { return(ANY); } 106 107 default { yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); } 108 use { yylval.num = IPSEC_LEVEL_USE; return(LEVEL); } 109 require { yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); } 110 unique { yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); } 111 {slash} { return(SLASH); } 112 113 {ipaddress} { 114 yylval.val.len = strlen(yytext); 115 yylval.val.buf = strdup(yytext); 116 return(IPADDRESS); 117 } 118 119 {hyphen} { return(HYPHEN); } 120 121 {ws} { ; } 122 {nl} { ; } 123 124 %% 125 126 void 127 __policy__strbuffer__init__(msg) 128 char *msg; 129 { 130 YY_BUFFER_STATE yyb; 131 132 yyb = (YY_BUFFER_STATE)yy_scan_string(msg); 133 yy_switch_to_buffer(yyb); 134 135 return; 136 } 137 138