Brian Waters | 13d9601 | 2017-12-08 16:53:31 -0600 | [diff] [blame^] | 1 | /***************************************************************************************************** |
| 2 | * Software License Agreement (BSD License) |
| 3 | * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp> |
| 4 | * |
| 5 | * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University and the WIDE Project |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use of this software in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * |
| 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 | * |
| 18 | * 3. All advertising materials mentioning features or use of this software |
| 19 | * must display the following acknowledgement: |
| 20 | * This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>. |
| 21 | * |
| 22 | * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the |
| 23 | * names of its contributors may be used to endorse or promote products |
| 24 | * derived from this software without specific prior written permission. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY |
| 27 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 28 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 29 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY |
| 30 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 31 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 32 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 33 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 35 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 36 | *****************************************************************************************************/ |
| 37 | |
| 38 | %{ |
| 39 | #include <stdio.h> |
| 40 | #include "eap_tls.h" |
| 41 | #include "eaptls.tab.h" |
| 42 | |
| 43 | void yyerror (YYLTYPE *llocp, struct tls_config * config, const char *s); |
| 44 | |
| 45 | extern int yywrap(); |
| 46 | extern int yylex(); |
| 47 | |
| 48 | |
| 49 | /* The Lex parser prototype */ |
| 50 | int eaptlslex(YYSTYPE *lvalp, YYLTYPE *llocp); |
| 51 | |
| 52 | |
| 53 | %} |
| 54 | |
| 55 | %locations |
| 56 | %parse-param {struct tls_config * config} |
| 57 | %pure_parser |
| 58 | /*%defines */ |
| 59 | %error-verbose |
| 60 | %debug |
| 61 | |
| 62 | %union { |
| 63 | char *str; |
| 64 | int val; |
| 65 | char byte; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | |
| 70 | /* In case of error in the lexical analysis */ |
| 71 | %token LEX_ERROR |
| 72 | |
| 73 | %token <val> NUM |
| 74 | |
| 75 | %token <str> iSTRING |
| 76 | |
| 77 | %token <byte> iBYTE |
| 78 | |
| 79 | %token CERTS |
| 80 | %token CAPATH |
| 81 | %token CRLPATH |
| 82 | %token CHECK_CN_USERNAME |
| 83 | |
| 84 | %% |
| 85 | |
| 86 | confparams : /* empty */ |
| 87 | | confparams CERTS_files |
| 88 | | confparams CA_file |
| 89 | | confparams CRL_file |
| 90 | | confparams CHECK_CN_USERNAME_param |
| 91 | | confparams errors |
| 92 | { |
| 93 | return EINVAL; |
| 94 | } |
| 95 | ; |
| 96 | |
| 97 | errors : LEX_ERROR |
| 98 | | error |
| 99 | ; |
| 100 | |
| 101 | |
| 102 | CERTS_files : CERTS '=' iSTRING ':' iSTRING ';' |
| 103 | { |
| 104 | char * certfile, *keyfile; |
| 105 | FILE * fl; |
| 106 | |
| 107 | certfile = $3; |
| 108 | keyfile = $5; |
| 109 | if(certfile == NULL){ |
| 110 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] certificate file missing in configuration file",DIAMEAP_EXTENSION); |
| 111 | yyerror (&yylloc, config, "cert file missing"); |
| 112 | YYERROR; |
| 113 | } |
| 114 | if(keyfile == NULL){ |
| 115 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] privateKey file missing in configuration file",DIAMEAP_EXTENSION); |
| 116 | yyerror (&yylloc, config, "privateKey file missing"); |
| 117 | YYERROR; |
| 118 | } |
| 119 | |
| 120 | fl = fopen(certfile, "r"); |
| 121 | if ((fl == NULL) && (*certfile != '/')) { |
| 122 | char * tmpfile=certfile; |
| 123 | CHECK_MALLOC_DO( certfile = malloc( strlen(tmpfile) + strlen(DEFAULT_EXTENSIONS_PATH) + 2 ), |
| 124 | { yyerror (&yylloc, config, "Not enough memory"); YYERROR; } ); |
| 125 | sprintf(certfile, DEFAULT_EXTENSIONS_PATH "/%s", tmpfile); |
| 126 | free(tmpfile); |
| 127 | fl = fopen(certfile, "r"); |
| 128 | } |
| 129 | if (fl == NULL) { |
| 130 | int ret = errno; |
| 131 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] Unable to open certificate file %s for reading: %s",DIAMEAP_EXTENSION,certfile,strerror(ret)); |
| 132 | yyerror (&yylloc, config, "Error configuring certificate for EAP-TLS"); |
| 133 | YYERROR; |
| 134 | } |
| 135 | fclose(fl); |
| 136 | |
| 137 | fl = fopen(keyfile, "r"); |
| 138 | if ((fl == NULL) && (*keyfile != '/')) { |
| 139 | char * tmpfile=keyfile; |
| 140 | CHECK_MALLOC_DO( keyfile = malloc( strlen(tmpfile) + strlen(DEFAULT_EXTENSIONS_PATH) + 2 ), |
| 141 | { yyerror (&yylloc, config, "Not enough memory"); YYERROR; } ); |
| 142 | sprintf(keyfile, DEFAULT_EXTENSIONS_PATH "/%s", tmpfile); |
| 143 | free(tmpfile); |
| 144 | fl = fopen(keyfile, "r"); |
| 145 | } |
| 146 | if (fl == NULL) { |
| 147 | int ret = errno; |
| 148 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] Unable to open privateKey file %s for reading: %s",DIAMEAP_EXTENSION,keyfile,strerror(ret)); |
| 149 | yyerror (&yylloc, config, "Error configuring privateKey for EAP-TLS"); |
| 150 | YYERROR; |
| 151 | } |
| 152 | fclose(fl); |
| 153 | |
| 154 | config->certfile = certfile; |
| 155 | config->keyfile = keyfile; |
| 156 | } |
| 157 | ; |
| 158 | |
| 159 | CA_file : CAPATH '=' iSTRING ';' |
| 160 | { |
| 161 | char * cafile; |
| 162 | FILE * fl; |
| 163 | |
| 164 | cafile = $3; |
| 165 | |
| 166 | if(cafile == NULL){ |
| 167 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] CA file missing in configuration file",DIAMEAP_EXTENSION); |
| 168 | yyerror (&yylloc, config, "cert file missing"); |
| 169 | YYERROR; |
| 170 | } |
| 171 | |
| 172 | fl = fopen(cafile, "r"); |
| 173 | if ((fl == NULL) && (*cafile != '/')) { |
| 174 | char * tmpfile=cafile; |
| 175 | CHECK_MALLOC_DO( cafile = malloc( strlen(tmpfile) + strlen(DEFAULT_EXTENSIONS_PATH) + 2 ), |
| 176 | { yyerror (&yylloc, config, "Not enough memory"); YYERROR; } ); |
| 177 | sprintf(cafile, DEFAULT_EXTENSIONS_PATH "/%s", tmpfile); |
| 178 | free(tmpfile); |
| 179 | fl = fopen(cafile, "r"); |
| 180 | } |
| 181 | if (fl == NULL) { |
| 182 | int ret = errno; |
| 183 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] Unable to open CA file %s for reading: %s",DIAMEAP_EXTENSION,cafile,strerror(ret)); |
| 184 | yyerror (&yylloc, config, "Error configuring CA file for EAP-TLS"); |
| 185 | YYERROR; |
| 186 | } |
| 187 | fclose(fl); |
| 188 | config->cafile=$3; |
| 189 | } |
| 190 | ; |
| 191 | |
| 192 | CRL_file : CRLPATH '=' iSTRING ';' |
| 193 | { |
| 194 | char * crlfile; |
| 195 | FILE * fl; |
| 196 | |
| 197 | crlfile = $3; |
| 198 | |
| 199 | if(crlfile == NULL){ |
| 200 | TRACE_DEBUG(FULL+1,"%s[EAP TLS plugin] CRL file missing in configuration file",DIAMEAP_EXTENSION); |
| 201 | |
| 202 | }else{ |
| 203 | |
| 204 | fl = fopen(crlfile, "r"); |
| 205 | if ((fl == NULL) && (*crlfile != '/')) { |
| 206 | char * tmpfile=crlfile; |
| 207 | CHECK_MALLOC_DO( crlfile = malloc( strlen(tmpfile) + strlen(DEFAULT_EXTENSIONS_PATH) + 2 ), |
| 208 | { yyerror (&yylloc, config, "Not enough memory"); YYERROR; } ); |
| 209 | sprintf(crlfile, DEFAULT_EXTENSIONS_PATH "/%s", tmpfile); |
| 210 | free(tmpfile); |
| 211 | fl = fopen(crlfile, "r"); |
| 212 | } |
| 213 | if (fl == NULL) { |
| 214 | int ret = errno; |
| 215 | TRACE_DEBUG(INFO,"%s[EAP TLS plugin] Unable to open CRL file %s for reading: %s",DIAMEAP_EXTENSION,crlfile,strerror(ret)); |
| 216 | yyerror (&yylloc, config, "Error configuring CRL file for EAP-TLS"); |
| 217 | YYERROR; |
| 218 | } |
| 219 | fclose(fl); |
| 220 | } |
| 221 | config->crlfile=$3; |
| 222 | } |
| 223 | ; |
| 224 | |
| 225 | CHECK_CN_USERNAME_param : |
| 226 | CHECK_CN_USERNAME '=' NUM ';' |
| 227 | { |
| 228 | if((int)$3 == 0){ |
| 229 | config->check_cert_cn_username = FALSE; |
| 230 | } |
| 231 | else |
| 232 | { |
| 233 | config->check_cert_cn_username = TRUE; |
| 234 | } |
| 235 | } |
| 236 | ; |
| 237 | |
| 238 | %% |
| 239 | |
| 240 | void yyerror(YYLTYPE *llocp, struct tls_config * config,const char *str) |
| 241 | { |
| 242 | fprintf(stderr,"Error in %s ( on line %i column %i -> line %i column %i) : %s\n",config->conffile, llocp->first_line, llocp->first_column, llocp->last_line, llocp->last_column, str); |
| 243 | } |