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