| 1 | /* $FreeBSD: src/lib/libipsec/policy_token.l,v 1.2.2.2 2001/07/03 11:01:15 ume Exp $ */ |
| 2 | /* $DragonFly: src/lib/libipsec/policy_token.l,v 1.4 2008/09/30 16:57:05 swildner Exp $ */ |
| 3 | /* $KAME: policy_token.l,v 1.11 2000/12/01 10:08:29 sakane Exp $ */ |
| 4 | |
| 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 <netkey/keydb.h> |
| 41 | #include <netinet/in.h> |
| 42 | #include <netinet6/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 | #define YY_NO_INPUT |
| 51 | |
| 52 | #ifndef __NetBSD__ |
| 53 | #include "y.tab.h" |
| 54 | #else |
| 55 | #include "policy_parse.h" |
| 56 | #endif |
| 57 | #define yylval __libipsecyylval /* XXX */ |
| 58 | |
| 59 | int yylex (void); |
| 60 | %} |
| 61 | |
| 62 | %option noyywrap |
| 63 | %option nounput |
| 64 | |
| 65 | /* common section */ |
| 66 | nl \n |
| 67 | ws [ \t]+ |
| 68 | digit [0-9] |
| 69 | hexdigit [0-9A-Fa-f] |
| 70 | special [()+\|\?\*,] |
| 71 | dot \. |
| 72 | comma \, |
| 73 | hyphen \- |
| 74 | colon \: |
| 75 | slash \/ |
| 76 | bcl \{ |
| 77 | ecl \} |
| 78 | blcl \[ |
| 79 | elcl \] |
| 80 | percent \% |
| 81 | semi \; |
| 82 | usec {dot}{digit}{1,6} |
| 83 | comment \#.* |
| 84 | ccomment "/*" |
| 85 | bracketstring \<[^>]*\> |
| 86 | quotedstring \"[^"]*\" |
| 87 | decstring {digit}+ |
| 88 | hexpair {hexdigit}{hexdigit} |
| 89 | hexstring 0[xX]{hexdigit}+ |
| 90 | octetstring {octet}({dot}{octet})+ |
| 91 | ipaddress [a-zA-Z0-9:\._][a-zA-Z0-9:\._]*(%[a-zA-Z0-9]+)? |
| 92 | |
| 93 | %% |
| 94 | |
| 95 | in { yylval.num = IPSEC_DIR_INBOUND; return(DIR); } |
| 96 | out { yylval.num = IPSEC_DIR_OUTBOUND; return(DIR); } |
| 97 | |
| 98 | discard { yylval.num = IPSEC_POLICY_DISCARD; return(ACTION); } |
| 99 | none { yylval.num = IPSEC_POLICY_NONE; return(ACTION); } |
| 100 | ipsec { yylval.num = IPSEC_POLICY_IPSEC; return(ACTION); } |
| 101 | bypass { yylval.num = IPSEC_POLICY_BYPASS; return(ACTION); } |
| 102 | entrust { yylval.num = IPSEC_POLICY_ENTRUST; return(ACTION); } |
| 103 | |
| 104 | esp { yylval.num = IPPROTO_ESP; return(PROTOCOL); } |
| 105 | ah { yylval.num = IPPROTO_AH; return(PROTOCOL); } |
| 106 | ipcomp { yylval.num = IPPROTO_IPCOMP; return(PROTOCOL); } |
| 107 | tcp { yylval.num = IPPROTO_TCP; return(PROTOCOL); } |
| 108 | |
| 109 | transport { yylval.num = IPSEC_MODE_TRANSPORT; return(MODE); } |
| 110 | tunnel { yylval.num = IPSEC_MODE_TUNNEL; return(MODE); } |
| 111 | |
| 112 | me { return(ME); } |
| 113 | any { return(ANY); } |
| 114 | |
| 115 | default { yylval.num = IPSEC_LEVEL_DEFAULT; return(LEVEL); } |
| 116 | use { yylval.num = IPSEC_LEVEL_USE; return(LEVEL); } |
| 117 | require { yylval.num = IPSEC_LEVEL_REQUIRE; return(LEVEL); } |
| 118 | unique{colon}{decstring} { |
| 119 | yylval.val.len = strlen(yytext + 7); |
| 120 | yylval.val.buf = yytext + 7; |
| 121 | return(LEVEL_SPECIFY); |
| 122 | } |
| 123 | unique { yylval.num = IPSEC_LEVEL_UNIQUE; return(LEVEL); } |
| 124 | {slash} { return(SLASH); } |
| 125 | |
| 126 | {ipaddress} { |
| 127 | yylval.val.len = strlen(yytext); |
| 128 | yylval.val.buf = yytext; |
| 129 | return(IPADDRESS); |
| 130 | } |
| 131 | |
| 132 | {hyphen} { return(HYPHEN); } |
| 133 | |
| 134 | {ws} { ; } |
| 135 | {nl} { ; } |
| 136 | |
| 137 | %% |
| 138 | |
| 139 | void __policy__strbuffer__init__ (char *); |
| 140 | |
| 141 | void |
| 142 | __policy__strbuffer__init__(char *msg) |
| 143 | { |
| 144 | YY_BUFFER_STATE yyb; |
| 145 | |
| 146 | yyb = (YY_BUFFER_STATE)yy_scan_string(msg); |
| 147 | yy_switch_to_buffer(yyb); |
| 148 | |
| 149 | return; |
| 150 | } |
| 151 | |