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

   1 /* config.c - configuration file handling routines */
   2
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include <sys/types.h>
   6 #include <sys/socket.h>
   7 #include "slap.h"
   8 #include "ldapconfig.h"
   9
  10 #define MAXARGS 100
  11
  12 extern Backend  *new_backend();
  13 extern char     *default_referral;
  14 extern int      ldap_syslog;
  15 extern int      global_schemacheck;
  16
  17 /*
  18  * defaults for various global variables
  19  */
  20 int             defsize = SLAPD_DEFAULT_SIZELIMIT;
  21 int             deftime = SLAPD_DEFAULT_TIMELIMIT;
  22 struct acl      *global_acl = NULL;
  23 int             global_default_access = ACL_READ;
  24 char            *replogfile;
  25 int             global_lastmod;
  26 char            *ldap_srvtab = "";
  27
  28 static char     *fp_getline();
  29 static void     fp_getline_init();
  30 static void     fp_parse_line();
  31
  32 static char     *strtok_quote();
  33
  34 void
  35 read_config( char *fname, Backend **bep, FILE *pfp )
  36 {
  37         FILE    *fp;
  38         char    *line, *savefname, *dn;
  39         int     cargc, savelineno;
  40         char    *cargv[MAXARGS];
  41         int     lineno, i;
  42         Backend *be;
  43
  44         if ( (fp = pfp) == NULL && (fp = fopen( fname, "r" )) == NULL ) {
  45                 ldap_syslog = 1;
  46                 Debug( LDAP_DEBUG_ANY,
  47                     "could not open config file \"%s\" - absolute path?\n",
  48                     fname, 0, 0 );
  49                 perror( fname );
  50                 exit( 1 );
  51         }
  52
  53         Debug( LDAP_DEBUG_CONFIG, "reading config file %s\n", fname, 0, 0 );
  54         be = *bep;
  55         fp_getline_init( &lineno );
  56         while ( (line = fp_getline( fp, &lineno )) != NULL ) {
  57                 /* skip comments and blank lines */
  58                 if ( line[0] == '#' || line[0] == '\0' ) {
  59                         continue;
  60                 }
  61
  62                 Debug( LDAP_DEBUG_CONFIG, "line %d (%s)\n", lineno, line, 0 );
  63
  64                 fp_parse_line( line, &cargc, cargv );
  65
  66                 if ( cargc < 1 ) {
  67                         Debug( LDAP_DEBUG_ANY,
  68                             "%s: line %d: bad config line (ignored)\n",
  69                             fname, lineno, 0 );
  70                         continue;
  71                 }
  72
  73                 /* start of a new database definition */
  74                 if ( strcasecmp( cargv[0], "database" ) == 0 ) {
  75                         if ( cargc < 2 ) {
  76                                 Debug( LDAP_DEBUG_ANY,
  77                 "%s: line %d: missing type in \"database <type>\" line\n",
  78                                     fname, lineno, 0 );
  79                                 exit( 1 );
  80                         }
  81                         *bep = new_backend( cargv[1] );
  82                         be = *bep;
  83
  84                 /* assign a default depth limit for alias deref */
  85                 be->be_maxDerefDepth = SLAPD_DEFAULT_MAXDEREFDEPTH;
  86
  87                 /* set size limit */
  88                 } else if ( strcasecmp( cargv[0], "sizelimit" ) == 0 ) {
  89                         if ( cargc < 2 ) {
  90                                 Debug( LDAP_DEBUG_ANY,
  91             "%s: line %d: missing limit in \"sizelimit <limit>\" line\n",
  92                                     fname, lineno, 0 );
  93                                 exit( 1 );
  94                         }
  95                         if ( be == NULL ) {
  96                                 defsize = atoi( cargv[1] );
  97                         } else {
  98                                 be->be_sizelimit = atoi( cargv[1] );
  99                         }
 100
 101                 /* set time limit */
 102                 } else if ( strcasecmp( cargv[0], "timelimit" ) == 0 ) {
 103                         if ( cargc < 2 ) {
 104                                 Debug( LDAP_DEBUG_ANY,
 105             "%s: line %d: missing limit in \"timelimit <limit>\" line\n",
 106                                     fname, lineno, 0 );
 107                                 exit( 1 );
 108                         }
 109                         if ( be == NULL ) {
 110                                 deftime = atoi( cargv[1] );
 111                         } else {
 112                                 be->be_timelimit = atoi( cargv[1] );
 113                         }
 114
 115                 /* set database suffix */
 116                 } else if ( strcasecmp( cargv[0], "suffix" ) == 0 ) {
 117                         if ( cargc < 2 ) {
 118                                 Debug( LDAP_DEBUG_ANY,
 119                     "%s: line %d: missing dn in \"suffix <dn>\" line\n",
 120                                     fname, lineno, 0 );
 121                                 exit( 1 );
 122                         } else if ( cargc > 2 ) {
 123                                 Debug( LDAP_DEBUG_ANY,
 124     "%s: line %d: extra cruft after <dn> in \"suffix %s\" line (ignored)\n",
 125                                     fname, lineno, cargv[1] );
 126                         }
 127                         if ( be == NULL ) {
 128                                 Debug( LDAP_DEBUG_ANY,
 129 "%s: line %d: suffix line must appear inside a database definition (ignored)\n",
 130                                     fname, lineno, 0 );
 131                         } else {
 132                                 dn = strdup( cargv[1] );
 133                                 (void) dn_normalize( dn );
 134                                 charray_add( &be->be_suffix, dn );
 135                         }
 136
 137                 /* set database suffixAlias */
 138                 } else if ( strcasecmp( cargv[0], "suffixAlias" ) == 0 ) {
 139                         if ( cargc < 2 ) {
 140                                 Debug( LDAP_DEBUG_ANY,
 141                     "%s: line %d: missing alias and aliased_dn in \"suffixAlias <alias> <aliased_dn>\" line\n",
 142                                     fname, lineno, 0 );
 143                                 exit( 1 );
 144                         } else if ( cargc < 3 ) {
 145                                 Debug( LDAP_DEBUG_ANY,
 146                     "%s: line %d: missing aliased_dn in \"suffixAlias <alias> <aliased_dn>\" line\n",
 147                                     fname, lineno, 0 );
 148                                 exit( 1 );
 149                         } else if ( cargc > 3 ) {
 150                                 Debug( LDAP_DEBUG_ANY,
 151     "%s: line %d: extra cruft in suffixAlias line (ignored)\n",
 152                                     fname, lineno, 0 );
 153                         }
 154                         if ( be == NULL ) {
 155                                 Debug( LDAP_DEBUG_ANY,
 156 "%s: line %d: suffixAlias line must appear inside a database definition (ignored)\n",
 157                                     fname, lineno, 0 );
 158                         } else {
 159                                 dn = strdup( cargv[1] );
 160                                 (void) dn_normalize( dn );
 161                                 charray_add( &be->be_suffixAlias, dn );
 162
 163                                 dn = strdup( cargv[2] );
 164                                 (void) dn_normalize( dn );
 165                                 charray_add( &be->be_suffixAlias, dn );
 166                         }
 167
 168                /* set max deref depth */
 169                } else if ( strcasecmp( cargv[0], "maxDerefDepth" ) == 0 ) {
 170                        if ( cargc < 2 ) {
 171                                Debug( LDAP_DEBUG_ANY,
 172                    "%s: line %d: missing depth in \"maxDerefDepth <depth>\" line\n",
 173                                    fname, lineno, 0 );
 174                                exit( 1 );
 175                        }
 176                        if ( be == NULL ) {
 177                                Debug( LDAP_DEBUG_ANY,
 178 "%s: line %d: depth line must appear inside a database definition (ignored)\n",
 179                                    fname, lineno, 0 );
 180                        } else {
 181                            be->be_maxDerefDepth = atoi (cargv[1]);
 182                        }
 183
 184
 185                 /* set magic "root" dn for this database */
 186                 } else if ( strcasecmp( cargv[0], "rootdn" ) == 0 ) {
 187                         if ( cargc < 2 ) {
 188                                 Debug( LDAP_DEBUG_ANY,
 189                     "%s: line %d: missing dn in \"rootdn <dn>\" line\n",
 190                                     fname, lineno, 0 );
 191                                 exit( 1 );
 192                         }
 193                         if ( be == NULL ) {
 194                                 Debug( LDAP_DEBUG_ANY,
 195 "%s: line %d: rootdn line must appear inside a database definition (ignored)\n",
 196                                     fname, lineno, 0 );
 197                         } else {
 198                                 dn = strdup( cargv[1] );
 199                                 (void) dn_normalize( dn );
 200                                 be->be_rootdn = dn;
 201                         }
 202
 203                 /* set super-secret magic database password */
 204                 } else if ( strcasecmp( cargv[0], "rootpw" ) == 0 ) {
 205                         if ( cargc < 2 ) {
 206                                 Debug( LDAP_DEBUG_ANY,
 207             "%s: line %d: missing passwd in \"rootpw <passwd>\" line\n",
 208                                     fname, lineno, 0 );
 209                                 exit( 1 );
 210                         }
 211                         if ( be == NULL ) {
 212                                 Debug( LDAP_DEBUG_ANY,
 213 "%s: line %d: rootpw line must appear inside a database definition (ignored)\n",
 214                                     fname, lineno, 0 );
 215                         } else {
 216                                 be->be_rootpw = strdup( cargv[1] );
 217                         }
 218
 219                 /* make this database read-only */
 220                 } else if ( strcasecmp( cargv[0], "readonly" ) == 0 ) {
 221                         if ( cargc < 2 ) {
 222                                 Debug( LDAP_DEBUG_ANY,
 223             "%s: line %d: missing on|off in \"readonly <on|off>\" line\n",
 224                                     fname, lineno, 0 );
 225                                 exit( 1 );
 226                         }
 227                         if ( be == NULL ) {
 228                                 Debug( LDAP_DEBUG_ANY,
 229 "%s: line %d: readonly line must appear inside a database definition (ignored)\n",
 230                                     fname, lineno, 0 );
 231                         } else {
 232                                 if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 233                                         be->be_readonly = 1;
 234                                 } else {
 235                                         be->be_readonly = 0;
 236                                 }
 237                         }
 238
 239                 /* where to send clients when we don't hold it */
 240                 } else if ( strcasecmp( cargv[0], "referral" ) == 0 ) {
 241                         if ( cargc < 2 ) {
 242                                 Debug( LDAP_DEBUG_ANY,
 243                     "%s: line %d: missing URL in \"referral <URL>\" line\n",
 244                                     fname, lineno, 0 );
 245                                 exit( 1 );
 246                         }
 247                         default_referral = (char *) malloc( strlen( cargv[1] )
 248                             + sizeof("Referral:\n") + 1 );
 249                         strcpy( default_referral, "Referral:\n" );
 250                         strcat( default_referral, cargv[1] );
 251
 252                 /* specify an objectclass */
 253                 } else if ( strcasecmp( cargv[0], "objectclass" ) == 0 ) {
 254                         parse_oc( be, fname, lineno, cargc, cargv );
 255
 256                 /* specify an attribute */
 257                 } else if ( strcasecmp( cargv[0], "attribute" ) == 0 ) {
 258                         attr_syntax_config( fname, lineno, cargc - 1,
 259                             &cargv[1] );
 260
 261                 /* turn on/off schema checking */
 262                 } else if ( strcasecmp( cargv[0], "schemacheck" ) == 0 ) {
 263                         if ( cargc < 2 ) {
 264                                 Debug( LDAP_DEBUG_ANY,
 265     "%s: line %d: missing on|off in \"schemacheck <on|off>\" line\n",
 266                                     fname, lineno, 0 );
 267                                 exit( 1 );
 268                         }
 269                         if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 270                                 global_schemacheck = 1;
 271                         } else {
 272                                 global_schemacheck = 0;
 273                         }
 274
 275                 /* specify access control info */
 276                 } else if ( strcasecmp( cargv[0], "access" ) == 0 ) {
 277                         parse_acl( be, fname, lineno, cargc, cargv );
 278
 279                 /* specify default access control info */
 280                 } else if ( strcasecmp( cargv[0], "defaultaccess" ) == 0 ) {
 281                         if ( cargc < 2 ) {
 282                                 Debug( LDAP_DEBUG_ANY,
 283             "%s: line %d: missing limit in \"defaultaccess <access>\" line\n",
 284                                     fname, lineno, 0 );
 285                                 exit( 1 );
 286                         }
 287                         if ( be == NULL ) {
 288                                 if ( (global_default_access =
 289                                     str2access( cargv[1] )) == -1 ) {
 290                                         Debug( LDAP_DEBUG_ANY,
 291 "%s: line %d: bad access \"%s\" expecting [self]{none|compare|read|write}\n",
 292                                             fname, lineno, cargv[1] );
 293                                         exit( 1 );
 294                                 }
 295                         } else {
 296                                 if ( (be->be_dfltaccess =
 297                                     str2access( cargv[1] )) == -1 ) {
 298                                         Debug( LDAP_DEBUG_ANY,
 299 "%s: line %d: bad access \"%s\" expecting [self]{none|compare|read|write}\n",
 300                                             fname, lineno, cargv[1] );
 301                                         exit( 1 );
 302                                 }
 303                         }
 304
 305                 /* debug level to log things to syslog */
 306                 } else if ( strcasecmp( cargv[0], "loglevel" ) == 0 ) {
 307                         if ( cargc < 2 ) {
 308                                 Debug( LDAP_DEBUG_ANY,
 309                     "%s: line %d: missing level in \"loglevel <level>\" line\n",
 310                                     fname, lineno, 0 );
 311                                 exit( 1 );
 312                         }
 313                         ldap_syslog = atoi( cargv[1] );
 314
 315                 /* list of replicas of the data in this backend (master only) */
 316                 } else if ( strcasecmp( cargv[0], "replica" ) == 0 ) {
 317                         if ( cargc < 2 ) {
 318                                 Debug( LDAP_DEBUG_ANY,
 319             "%s: line %d: missing host in \"replica <host[:port]>\" line\n",
 320                                     fname, lineno, 0 );
 321                                 exit( 1 );
 322                         }
 323                         if ( be == NULL ) {
 324                                 Debug( LDAP_DEBUG_ANY,
 325 "%s: line %d: replica line must appear inside a database definition (ignored)\n",
 326                                     fname, lineno, 0 );
 327                         } else {
 328                                 for ( i = 1; i < cargc; i++ ) {
 329                                         if ( strncasecmp( cargv[i], "host=", 5 )
 330                                             == 0 ) {
 331                                                 charray_add( &be->be_replica,
 332                                                     strdup( cargv[i] + 5 ) );
 333                                                 break;
 334                                         }
 335                                 }
 336                                 if ( i == cargc ) {
 337                                         Debug( LDAP_DEBUG_ANY,
 338                     "%s: line %d: missing host in \"replica\" line (ignored)\n",
 339                                             fname, lineno, 0 );
 340                                 }
 341                         }
 342
 343                 /* dn of master entity allowed to write to replica */
 344                 } else if ( strcasecmp( cargv[0], "updatedn" ) == 0 ) {
 345                         if ( cargc < 2 ) {
 346                                 Debug( LDAP_DEBUG_ANY,
 347                     "%s: line %d: missing dn in \"updatedn <dn>\" line\n",
 348                                     fname, lineno, 0 );
 349                                 exit( 1 );
 350                         }
 351                         if ( be == NULL ) {
 352                                 Debug( LDAP_DEBUG_ANY,
 353 "%s: line %d: updatedn line must appear inside a database definition (ignored)\n",
 354                                     fname, lineno, 0 );
 355                         } else {
 356                                 be->be_updatedn = strdup( cargv[1] );
 357                                 (void) dn_normalize( be->be_updatedn );
 358                         }
 359
 360                 /* replication log file to which changes are appended */
 361                 } else if ( strcasecmp( cargv[0], "replogfile" ) == 0 ) {
 362                         if ( cargc < 2 ) {
 363                                 Debug( LDAP_DEBUG_ANY,
 364             "%s: line %d: missing dn in \"replogfile <filename>\" line\n",
 365                                     fname, lineno, 0 );
 366                                 exit( 1 );
 367                         }
 368                         if ( be ) {
 369                                 be->be_replogfile = strdup( cargv[1] );
 370                         } else {
 371                                 replogfile = strdup( cargv[1] );
 372                         }
 373
 374                 /* maintain lastmodified{by,time} attributes */
 375                 } else if ( strcasecmp( cargv[0], "lastmod" ) == 0 ) {
 376                         if ( cargc < 2 ) {
 377                                 Debug( LDAP_DEBUG_ANY,
 378             "%s: line %d: missing on|off in \"lastmod <on|off>\" line\n",
 379                                     fname, lineno, 0 );
 380                                 exit( 1 );
 381                         }
 382                         if ( strcasecmp( cargv[1], "on" ) == 0 ) {
 383                                 if ( be )
 384                                         be->be_lastmod = ON;
 385                                 else
 386                                         global_lastmod = ON;
 387                         } else {
 388                                 if ( be )
 389                                         be->be_lastmod = OFF;
 390                                 else
 391                                         global_lastmod = OFF;
 392                         }
 393
 394                 /* include another config file */
 395                 } else if ( strcasecmp( cargv[0], "include" ) == 0 ) {
 396                         if ( cargc < 2 ) {
 397                                 Debug( LDAP_DEBUG_ANY,
 398     "%s: line %d: missing filename in \"include <filename>\" line\n",
 399                                     fname, lineno, 0 );
 400                                 exit( 1 );
 401                         }
 402                         savefname = strdup( cargv[1] );
 403                         savelineno = lineno;
 404                         read_config( savefname, bep, NULL );
 405                         be = *bep;
 406                         free( savefname );
 407                         lineno = savelineno - 1;
 408
 409                 /* location of kerberos srvtab file */
 410                 } else if ( strcasecmp( cargv[0], "srvtab" ) == 0 ) {
 411                         if ( cargc < 2 ) {
 412                                 Debug( LDAP_DEBUG_ANY,
 413             "%s: line %d: missing filename in \"srvtab <filename>\" line\n",
 414                                     fname, lineno, 0 );
 415                                 exit( 1 );
 416                         }
 417                         ldap_srvtab = strdup( cargv[1] );
 418
 419                 /* pass anything else to the current backend config routine */
 420                 } else {
 421                         if ( be == NULL ) {
 422                                 Debug( LDAP_DEBUG_ANY,
 423 "%s: line %d: unknown directive \"%s\" outside database definition (ignored)\n",
 424                                     fname, lineno, cargv[0] );
 425                         } else if ( be->be_config == NULL ) {
 426                                 Debug( LDAP_DEBUG_ANY,
 427 "%s: line %d: unknown directive \"%s\" inside database definition (ignored)\n",
 428                                     fname, lineno, cargv[0] );
 429                         } else {
 430                                 (*be->be_config)( be, fname, lineno, cargc,
 431                                     cargv );
 432                         }
 433                 }
 434         }
 435         fclose( fp );
 436 }
 437
 438 static void
 439 fp_parse_line(
 440     char        *line,
 441     int         *argcp,
 442     char        **argv
 443 )
 444 {
 445         char *  token;
 446
 447         *argcp = 0;
 448         for ( token = strtok_quote( line, " \t" ); token != NULL;
 449             token = strtok_quote( NULL, " \t" ) ) {
 450                 if ( *argcp == MAXARGS ) {
 451                         Debug( LDAP_DEBUG_ANY, "Too many tokens (max %d)\n",
 452                             MAXARGS, 0, 0 );
 453                         exit( 1 );
 454                 }
 455                 argv[(*argcp)++] = token;
 456         }
 457         argv[*argcp] = NULL;
 458 }
 459
 460 static char *
 461 strtok_quote( char *line, char *sep )
 462 {
 463         int             inquote;
 464         char            *tmp;
 465         static char     *next;
 466
 467         if ( line != NULL ) {
 468                 next = line;
 469         }
 470         while ( *next && strchr( sep, *next ) ) {
 471                 next++;
 472         }
 473
 474         if ( *next == '\0' ) {
 475                 next = NULL;
 476                 return( NULL );
 477         }
 478         tmp = next;
 479
 480         for ( inquote = 0; *next; ) {
 481                 switch ( *next ) {
 482                 case '"':
 483                         if ( inquote ) {
 484                                 inquote = 0;
 485                         } else {
 486                                 inquote = 1;
 487                         }
 488                         strcpy( next, next + 1 );
 489                         break;
 490
 491                 case '\\':
 492                         strcpy( next, next + 1 );
 493                         break;
 494
 495                 default:
 496                         if ( ! inquote ) {
 497                                 if ( strchr( sep, *next ) != NULL ) {
 498                                         *next++ = '\0';
 499                                         return( tmp );
 500                                 }
 501                         }
 502                         next++;
 503                         break;
 504                 }
 505         }
 506
 507         return( tmp );
 508 }
 509
 510 static char     buf[BUFSIZ];
 511 static char     *line;
 512 static int      lmax, lcur;
 513
 514 #define CATLINE( buf )  { \
 515         int     len; \
 516         len = strlen( buf ); \
 517         while ( lcur + len + 1 > lmax ) { \
 518                 lmax += BUFSIZ; \
 519                 line = (char *) ch_realloc( line, lmax ); \
 520         } \
 521         strcpy( line + lcur, buf ); \
 522         lcur += len; \
 523 }
 524
 525 static char *
 526 fp_getline( FILE *fp, int *lineno )
 527 {
 528         char            *p;
 529
 530         lcur = 0;
 531         CATLINE( buf );
 532         (*lineno)++;
 533
 534         /* hack attack - keeps us from having to keep a stack of bufs... */
 535         if ( strncasecmp( line, "include", 7 ) == 0 ) {
 536                 buf[0] = '\0';
 537                 return( line );
 538         }
 539
 540         while ( fgets( buf, sizeof(buf), fp ) != NULL ) {
 541                 if ( (p = strchr( buf, '\n' )) != NULL ) {
 542                         *p = '\0';
 543                 }
 544                 if ( ! isspace( buf[0] ) ) {
 545                         return( line );
 546                 }
 547
 548                 CATLINE( buf );
 549                 (*lineno)++;
 550         }
 551         buf[0] = '\0';
 552
 553         return( line[0] ? line : NULL );
 554 }
 555
 556 static void
 557 fp_getline_init( int *lineno )
 558 {
 559         *lineno = -1;
 560         buf[0] = '\0';
 561 }