git.sur5r.net Git - openldap/blob - servers/slapd/config.c

   1 /* config.c - configuration file handling routines */
   2
   3 #include "portable.h"
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7 #include <sys/types.h>
   8 #include <sys/socket.h>
   9 #include "slap.h"
  10 #include "ldapconfig.h"
  11
  12 #define MAXARGS 100
  13
  14 extern Backend  *new_backend();
  15 extern char     *default_referral;
  16 extern int      ldap_syslog;
  17 extern int      global_schemacheck;
  18
  19 /*
  20  * defaults for various global variables
  21  */
  22 int             defsize = SLAPD_DEFAULT_SIZELIMIT;
  23 int             deftime = SLAPD_DEFAULT_TIMELIMIT;
  24 struct acl      *global_acl = NULL;
  25 int             global_default_access = ACL_READ;
  26 char            *replogfile;
  27 int             global_lastmod;
  28 char            *ldap_srvtab = "";
  29
  30 static char     *fp_getline();
  31 static void     fp_getline_init();
  32 static void     fp_parse_line();
  33
  34 static char     *strtok_quote();
  35
  36 void
  37 read_config( char *fname, Backend **bep, FILE *pfp )
  38 {
  39         FILE    *fp;
  40         char    *line, *savefname, *dn;
  41         int     cargc, savelineno;
  42         char    *cargv[MAXARGS];
  43         int     lineno, i;
  44         Backend *be;
  45
  46         if ( (fp = pfp) == NULL && (fp = fopen( fname, "r" )) == NULL ) {
  47                 ldap_syslog = 1;
  48                 Debug( LDAP_DEBUG_ANY,
  49                     "could not open config file \"%s\" - absolute path?\n",
  50                     fname, 0, 0 );
  51                 perror( fname );
  52                 exit( 1 );
  53         }
  54
  55         Debug( LDAP_DEBUG_CONFIG, "reading config file %s\n", fname, 0, 0 );
  56         be = *bep;
  57         fp_getline_init( &lineno );
  58         while ( (line = fp_getline( fp, &lineno )) != NULL ) {
  59                 /* skip comments and blank lines */
  60                 if ( line[0] == '#' || line[0] == '\0' ) {
  61                         continue;
  62                 }
  63
  64                 Debug( LDAP_DEBUG_CONFIG, "line %d (%s)\n", lineno, line, 0 );
  65
  66                 fp_parse_line( line, &cargc, cargv );
  67
  68                 if ( cargc < 1 ) {
  69                         Debug( LDAP_DEBUG_ANY,
  70                             "%s: line %d: bad config line (ignored)\n",
  71                             fname, lineno, 0 );
  72                         continue;
  73                 }
  74
  75                 /* start of a new database definition */
  76                 if ( strcasecmp( cargv[0], "database" ) == 0 ) {
  77                         if ( cargc < 2 ) {
  78                                 Debug( LDAP_DEBUG_ANY,
  79                 "%s: line %d: missing type in \"database <type>\" line\n",
  80                                     fname, lineno, 0 );
  81                                 exit( 1 );
  82                         }
  83                         *bep = new_backend( cargv[1] );
  84                         be = *bep;
  85
  86                 /* set size limit */
  87                 } else if ( strcasecmp( cargv[0], "sizelimit" ) == 0 ) {
  88                         if ( cargc < 2 ) {
  89                                 Debug( LDAP_DEBUG_ANY,
  90             "%s: line %d: missing limit in \"sizelimit <limit>\" line\n",
  91                                     fname, lineno, 0 );
  92                                 exit( 1 );
  93                         }
  94                         if ( be == NULL ) {
  95                                 defsize = atoi( cargv[1] );
  96                         } else {
  97                                 be->be_sizelimit = atoi( cargv[1] );
  98                         }
  99
 100                 /* set time limit */
 101                 } else if ( strcasecmp( cargv[0], "timelimit" ) == 0 ) {
 102                         if ( cargc < 2 ) {
 103                                 Debug( LDAP_DEBUG_ANY,
 104             "%s: line %d: missing limit in \"timelimit <limit>\" line\n",
 105                                     fname, lineno, 0 );
 106                                 exit( 1 );
 107                         }
 108                         if ( be == NULL ) {
 109                                 deftime = atoi( cargv[1] );
 110                         } else {
 111                                 be->be_timelimit = atoi( cargv[1] );
 112                         }
 113
 114                 /* set database suffix */
 115                 } else if ( strcasecmp( cargv[0], "suffix" ) == 0 ) {
 116                         if ( cargc < 2 ) {
 117                                 Debug( LDAP_DEBUG_ANY,
 118                     "%s: line %d: missing dn in \"suffix <dn>\" line\n",
 119                                     fname, lineno, 0 );
 120                                 exit( 1 );
 121                         } else if ( cargc > 2 ) {
 122                                 Debug( LDAP_DEBUG_ANY,
 123     "%s: line %d: extra cruft after <dn> in \"suffix %s\" line (ignored)\n",
 124                                     fname, lineno, cargv[1] );
 125                         }
 126                         if ( be == NULL ) {
 127                                 Debug( LDAP_DEBUG_ANY,
 128 "%s: line %d: suffix line must appear inside a database definition (ignored)\n",
 129                                     fname, lineno, 0 );
 130                         } else {
 131                                 dn = strdup( cargv[1] );
 132                                 (void) dn_normalize( dn );
 133                                 charray_add( &be->be_suffix, dn );
 134                         }
 135
 136                 /* set magic "root" dn for this database */
 137                 } else if ( strcasecmp( cargv[0], "rootdn" ) == 0 ) {
 138                         if ( cargc < 2 ) {
 139                                 Debug( LDAP_DEBUG_ANY,
 140                     "%s: line %d: missing dn in \"rootdn <dn>\" line\n",
 141                                     fname, lineno, 0 );
 142                                 exit( 1 );
 143                         }
 144                         if ( be == NULL ) {
 145                                 Debug( LDAP_DEBUG_ANY,
 146 "%s: line %d: rootdn line must appear inside a database definition (ignored)\n",
 147                                     fname, lineno, 0 );
 148                         } else {
 149                                 dn = strdup( cargv[1] );
 150                                 (void) dn_normalize( dn );
 151                                 be->be_rootdn = dn;
 152                         }
 153
 154                 /* set super-secret magic database password */
 155                 } else if ( strcasecmp( cargv[0], "rootpw" ) == 0 ) {
 156                         if ( cargc < 2 ) {
 157                                 Debug( LDAP_DEBUG_ANY,
 158             "%s: line %d: missing passwd in \"rootpw <passwd>\" line\n",
 159                                     fname, lineno, 0 );
 160                                 exit( 1 );
 161                         }
 162                         if ( be == NULL ) {
 163                                 Debug( LDAP_DEBUG_ANY,
 164 "%s: line %d: rootpw line must appear inside a database definition (ignored)\n",
 165                                     fname, lineno, 0 );
 166                         } else {
 167                                 be->be_rootpw = strdup( cargv[1] );
 168                         }
 169
 170                 /* make this database read-only */
 171                 } else if ( strcasecmp( cargv[0], "readonly" ) == 0 ) {
 172                         if ( cargc < 2 ) {
 173                                 Debug( LDAP_DEBUG_ANY,
 174             "%s: line %d: missing on|off in \"readonly <on|off>\" line\n",
 175                                     fname, lineno, 0 );
 176                                 exit( 1 );
 177                         }
 178                         if ( be == NULL ) {
 179                                 Debug( LDAP_DEBUG_ANY,
 180 "%s: line %d: readonly line must appear inside a database definition (ignored)\n",
 181                                     fname, lineno, 0 );
 182                         } else {
 183                                 if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 184                                         be->be_readonly = 1;
 185                                 } else {
 186                                         be->be_readonly = 0;
 187                                 }
 188                         }
 189
 190                 /* where to send clients when we don't hold it */
 191                 } else if ( strcasecmp( cargv[0], "referral" ) == 0 ) {
 192                         if ( cargc < 2 ) {
 193                                 Debug( LDAP_DEBUG_ANY,
 194                     "%s: line %d: missing URL in \"referral <URL>\" line\n",
 195                                     fname, lineno, 0 );
 196                                 exit( 1 );
 197                         }
 198                         default_referral = (char *) malloc( strlen( cargv[1] )
 199                             + sizeof("Referral:\n") + 1 );
 200                         strcpy( default_referral, "Referral:\n" );
 201                         strcat( default_referral, cargv[1] );
 202
 203                 /* specify an objectclass */
 204                 } else if ( strcasecmp( cargv[0], "objectclass" ) == 0 ) {
 205                         parse_oc( be, fname, lineno, cargc, cargv );
 206
 207                 /* specify an attribute */
 208                 } else if ( strcasecmp( cargv[0], "attribute" ) == 0 ) {
 209                         attr_syntax_config( fname, lineno, cargc - 1,
 210                             &cargv[1] );
 211
 212                 /* turn on/off schema checking */
 213                 } else if ( strcasecmp( cargv[0], "schemacheck" ) == 0 ) {
 214                         if ( cargc < 2 ) {
 215                                 Debug( LDAP_DEBUG_ANY,
 216     "%s: line %d: missing on|off in \"schemacheck <on|off>\" line\n",
 217                                     fname, lineno, 0 );
 218                                 exit( 1 );
 219                         }
 220                         if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 221                                 global_schemacheck = 1;
 222                         } else {
 223                                 global_schemacheck = 0;
 224                         }
 225
 226                 /* specify access control info */
 227                 } else if ( strcasecmp( cargv[0], "access" ) == 0 ) {
 228                         parse_acl( be, fname, lineno, cargc, cargv );
 229
 230                 /* specify default access control info */
 231                 } else if ( strcasecmp( cargv[0], "defaultaccess" ) == 0 ) {
 232                         if ( cargc < 2 ) {
 233                                 Debug( LDAP_DEBUG_ANY,
 234             "%s: line %d: missing limit in \"defaultaccess <access>\" line\n",
 235                                     fname, lineno, 0 );
 236                                 exit( 1 );
 237                         }
 238                         if ( be == NULL ) {
 239                                 if ( (global_default_access =
 240                                     str2access( cargv[1] )) == -1 ) {
 241                                         Debug( LDAP_DEBUG_ANY,
 242 "%s: line %d: bad access \"%s\" expecting [self]{none|compare|read|write}\n",
 243                                             fname, lineno, cargv[1] );
 244                                         exit( 1 );
 245                                 }
 246                         } else {
 247                                 if ( (be->be_dfltaccess =
 248                                     str2access( cargv[1] )) == -1 ) {
 249                                         Debug( LDAP_DEBUG_ANY,
 250 "%s: line %d: bad access \"%s\" expecting [self]{none|compare|read|write}\n",
 251                                             fname, lineno, cargv[1] );
 252                                         exit( 1 );
 253                                 }
 254                         }
 255
 256                 /* debug level to log things to syslog */
 257                 } else if ( strcasecmp( cargv[0], "loglevel" ) == 0 ) {
 258                         if ( cargc < 2 ) {
 259                                 Debug( LDAP_DEBUG_ANY,
 260                     "%s: line %d: missing level in \"loglevel <level>\" line\n",
 261                                     fname, lineno, 0 );
 262                                 exit( 1 );
 263                         }
 264                         ldap_syslog = atoi( cargv[1] );
 265
 266                 /* list of replicas of the data in this backend (master only) */
 267                 } else if ( strcasecmp( cargv[0], "replica" ) == 0 ) {
 268                         if ( cargc < 2 ) {
 269                                 Debug( LDAP_DEBUG_ANY,
 270             "%s: line %d: missing host in \"replica <host[:port]>\" line\n",
 271                                     fname, lineno, 0 );
 272                                 exit( 1 );
 273                         }
 274                         if ( be == NULL ) {
 275                                 Debug( LDAP_DEBUG_ANY,
 276 "%s: line %d: replica line must appear inside a database definition (ignored)\n",
 277                                     fname, lineno, 0 );
 278                         } else {
 279                                 for ( i = 1; i < cargc; i++ ) {
 280                                         if ( strncasecmp( cargv[i], "host=", 5 )
 281                                             == 0 ) {
 282                                                 charray_add( &be->be_replica,
 283                                                     strdup( cargv[i] + 5 ) );
 284                                                 break;
 285                                         }
 286                                 }
 287                                 if ( i == cargc ) {
 288                                         Debug( LDAP_DEBUG_ANY,
 289                     "%s: line %d: missing host in \"replica\" line (ignored)\n",
 290                                             fname, lineno, 0 );
 291                                 }
 292                         }
 293
 294                 /* dn of master entity allowed to write to replica */
 295                 } else if ( strcasecmp( cargv[0], "updatedn" ) == 0 ) {
 296                         if ( cargc < 2 ) {
 297                                 Debug( LDAP_DEBUG_ANY,
 298                     "%s: line %d: missing dn in \"updatedn <dn>\" line\n",
 299                                     fname, lineno, 0 );
 300                                 exit( 1 );
 301                         }
 302                         if ( be == NULL ) {
 303                                 Debug( LDAP_DEBUG_ANY,
 304 "%s: line %d: updatedn line must appear inside a database definition (ignored)\n",
 305                                     fname, lineno, 0 );
 306                         } else {
 307                                 be->be_updatedn = strdup( cargv[1] );
 308                                 (void) dn_normalize( be->be_updatedn );
 309                         }
 310
 311                 /* replication log file to which changes are appended */
 312                 } else if ( strcasecmp( cargv[0], "replogfile" ) == 0 ) {
 313                         if ( cargc < 2 ) {
 314                                 Debug( LDAP_DEBUG_ANY,
 315             "%s: line %d: missing dn in \"replogfile <filename>\" line\n",
 316                                     fname, lineno, 0 );
 317                                 exit( 1 );
 318                         }
 319                         if ( be ) {
 320                                 be->be_replogfile = strdup( cargv[1] );
 321                         } else {
 322                                 replogfile = strdup( cargv[1] );
 323                         }
 324
 325                 /* maintain lastmodified{by,time} attributes */
 326                 } else if ( strcasecmp( cargv[0], "lastmod" ) == 0 ) {
 327                         if ( cargc < 2 ) {
 328                                 Debug( LDAP_DEBUG_ANY,
 329             "%s: line %d: missing on|off in \"lastmod <on|off>\" line\n",
 330                                     fname, lineno, 0 );
 331                                 exit( 1 );
 332                         }
 333                         if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 334                                 if ( be )
 335                                         be->be_lastmod = ON;
 336                                 else
 337                                         global_lastmod = ON;
 338                         } else {
 339                                 if ( be )
 340                                         be->be_lastmod = OFF;
 341                                 else
 342                                         global_lastmod = OFF;
 343                         }
 344
 345                 /* include another config file */
 346                 } else if ( strcasecmp( cargv[0], "include" ) == 0 ) {
 347                         if ( cargc < 2 ) {
 348                                 Debug( LDAP_DEBUG_ANY,
 349     "%s: line %d: missing filename in \"include <filename>\" line\n",
 350                                     fname, lineno, 0 );
 351                                 exit( 1 );
 352                         }
 353                         savefname = strdup( cargv[1] );
 354                         savelineno = lineno;
 355                         read_config( savefname, bep, NULL );
 356                         be = *bep;
 357                         free( savefname );
 358                         lineno = savelineno - 1;
 359
 360                 /* location of kerberos srvtab file */
 361                 } else if ( strcasecmp( cargv[0], "srvtab" ) == 0 ) {
 362                         if ( cargc < 2 ) {
 363                                 Debug( LDAP_DEBUG_ANY,
 364             "%s: line %d: missing filename in \"srvtab <filename>\" line\n",
 365                                     fname, lineno, 0 );
 366                                 exit( 1 );
 367                         }
 368                         ldap_srvtab = strdup( cargv[1] );
 369
 370                 /* pass anything else to the current backend config routine */
 371                 } else {
 372                         if ( be == NULL ) {
 373                                 Debug( LDAP_DEBUG_ANY,
 374 "%s: line %d: unknown directive \"%s\" outside database definition (ignored)\n",
 375                                     fname, lineno, cargv[0] );
 376                         } else if ( be->be_config == NULL ) {
 377                                 Debug( LDAP_DEBUG_ANY,
 378 "%s: line %d: unknown directive \"%s\" inside database definition (ignored)\n",
 379                                     fname, lineno, cargv[0] );
 380                         } else {
 381                                 (*be->be_config)( be, fname, lineno, cargc,
 382                                     cargv );
 383                         }
 384                 }
 385         }
 386         fclose( fp );
 387 }
 388
 389 static void
 390 fp_parse_line(
 391     char        *line,
 392     int         *argcp,
 393     char        **argv
 394 )
 395 {
 396         char *  token;
 397
 398         *argcp = 0;
 399         for ( token = strtok_quote( line, " \t" ); token != NULL;
 400             token = strtok_quote( NULL, " \t" ) ) {
 401                 if ( *argcp == MAXARGS ) {
 402                         Debug( LDAP_DEBUG_ANY, "Too many tokens (max %d)\n",
 403                             MAXARGS, 0, 0 );
 404                         exit( 1 );
 405                 }
 406                 argv[(*argcp)++] = token;
 407         }
 408         argv[*argcp] = NULL;
 409 }
 410
 411 static char *
 412 strtok_quote( char *line, char *sep )
 413 {
 414         int             inquote;
 415         char            *tmp;
 416         static char     *next;
 417
 418         if ( line != NULL ) {
 419                 next = line;
 420         }
 421         while ( *next && strchr( sep, *next ) ) {
 422                 next++;
 423         }
 424
 425         if ( *next == '\0' ) {
 426                 next = NULL;
 427                 return( NULL );
 428         }
 429         tmp = next;
 430
 431         for ( inquote = 0; *next; ) {
 432                 switch ( *next ) {
 433                 case '"':
 434                         if ( inquote ) {
 435                                 inquote = 0;
 436                         } else {
 437                                 inquote = 1;
 438                         }
 439                         strcpy( next, next + 1 );
 440                         break;
 441
 442                 case '\\':
 443                         strcpy( next, next + 1 );
 444                         break;
 445
 446                 default:
 447                         if ( ! inquote ) {
 448                                 if ( strchr( sep, *next ) != NULL ) {
 449                                         *next++ = '\0';
 450                                         return( tmp );
 451                                 }
 452                         }
 453                         next++;
 454                         break;
 455                 }
 456         }
 457
 458         return( tmp );
 459 }
 460
 461 static char     buf[BUFSIZ];
 462 static char     *line;
 463 static int      lmax, lcur;
 464
 465 #define CATLINE( buf )  { \
 466         int     len; \
 467         len = strlen( buf ); \
 468         while ( lcur + len + 1 > lmax ) { \
 469                 lmax += BUFSIZ; \
 470                 line = (char *) ch_realloc( line, lmax ); \
 471         } \
 472         strcpy( line + lcur, buf ); \
 473         lcur += len; \
 474 }
 475
 476 static char *
 477 fp_getline( FILE *fp, int *lineno )
 478 {
 479         char            *p;
 480
 481         lcur = 0;
 482         CATLINE( buf );
 483         (*lineno)++;
 484
 485         /* hack attack - keeps us from having to keep a stack of bufs... */
 486         if ( strncasecmp( line, "include", 7 ) == 0 ) {
 487                 buf[0] = '\0';
 488                 return( line );
 489         }
 490
 491         while ( fgets( buf, sizeof(buf), fp ) != NULL ) {
 492                 if ( (p = strchr( buf, '\n' )) != NULL ) {
 493                         *p = '\0';
 494                 }
 495                 if ( ! isspace( buf[0] ) ) {
 496                         return( line );
 497                 }
 498
 499                 CATLINE( buf );
 500                 (*lineno)++;
 501         }
 502         buf[0] = '\0';
 503
 504         return( line[0] ? line : NULL );
 505 }
 506
 507 static void
 508 fp_getline_init( int *lineno )
 509 {
 510         *lineno = -1;
 511         buf[0] = '\0';
 512 }