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

   1 /* aclparse.c - routines to parse and check acl's */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/ctype.h>
  13 #include <ac/regex.h>
  14 #include <ac/socket.h>
  15 #include <ac/string.h>
  16 #include <ac/unistd.h>
  17
  18 #include "slap.h"
  19
  20 static void             split(char *line, int splitchar, char **left, char **right);
  21 static void             access_append(Access **l, Access *a);
  22 static void             acl_usage(void) LDAP_GCCATTR((noreturn));
  23
  24 #ifdef LDAP_DEBUG
  25 static void             print_acl(Backend *be, AccessControl *a);
  26 static void             print_access(Access *b);
  27 #endif
  28
  29 static int
  30 regtest(const char *fname, int lineno, char *pat) {
  31         int e;
  32         regex_t re;
  33
  34         char buf[512];
  35         unsigned size;
  36
  37         char *sp;
  38         char *dp;
  39         int  flag;
  40
  41         sp = pat;
  42         dp = buf;
  43         size = 0;
  44         buf[0] = '\0';
  45
  46         for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
  47                 if (flag) {
  48                         if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
  49                                 *dp++ = *sp;
  50                                 size++;
  51                         }
  52                         flag = 0;
  53
  54                 } else {
  55                         if (*sp == '$') {
  56                                 flag = 1;
  57                         } else {
  58                                 *dp++ = *sp;
  59                                 size++;
  60                         }
  61                 }
  62         }
  63
  64         *dp = '\0';
  65         if ( size >= (sizeof(buf)-1) ) {
  66                 fprintf( stderr,
  67                         "%s: line %d: regular expression \"%s\" too large\n",
  68                         fname, lineno, pat );
  69                 acl_usage();
  70         }
  71
  72         if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
  73                 char error[512];
  74                 regerror(e, &re, error, sizeof(error));
  75                 fprintf( stderr,
  76                         "%s: line %d: regular expression \"%s\" bad because of %s\n",
  77                         fname, lineno, pat, error );
  78                 acl_usage();
  79                 return(0);
  80         }
  81         regfree(&re);
  82         return(1);
  83 }
  84
  85 void
  86 parse_acl(
  87     Backend     *be,
  88     const char  *fname,
  89     int         lineno,
  90     int         argc,
  91     char        **argv
  92 )
  93 {
  94         int             i;
  95         char            *left, *right;
  96         AccessControl   *a;
  97         Access  *b;
  98 #ifdef SLAPD_SCHEMA_NOT_COMPAT
  99         int rc;
 100         const char *text;
 101         AttributeDescription *ad_distinguishedName = slap_schema.si_ad_distinguishedName;
 102         AttributeDescription *ad_member = slap_schema.si_ad_member;
 103 #ifdef SLAPD_ACI_ENABLED
 104         AttributeDescription *ad_aci = slap_schema.si_ad_aci;
 105 #endif
 106 #else
 107         static char *ad_aci = "aci";
 108         static char *ad_member = "member";
 109 #endif
 110
 111         a = NULL;
 112         for ( i = 1; i < argc; i++ ) {
 113                 /* to clause - select which entries are protected */
 114                 if ( strcasecmp( argv[i], "to" ) == 0 ) {
 115                         if ( a != NULL ) {
 116                                 fprintf( stderr,
 117                 "%s: line %d: only one to clause allowed in access line\n",
 118                                     fname, lineno );
 119                                 acl_usage();
 120                         }
 121                         a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 122                         a->acl_filter = NULL;
 123                         a->acl_dn_pat = NULL;
 124                         a->acl_attrs  = NULL;
 125                         a->acl_access = NULL;
 126                         a->acl_next   = NULL;
 127                         for ( ++i; i < argc; i++ ) {
 128                                 if ( strcasecmp( argv[i], "by" ) == 0 ) {
 129                                         i--;
 130                                         break;
 131                                 }
 132
 133                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 134                                         if( a->acl_dn_pat != NULL ) {
 135                                                 fprintf( stderr,
 136                                                         "%s: line %d: dn pattern"
 137                                                         " already specified in to clause.\n",
 138                                                         fname, lineno );
 139                                                 acl_usage();
 140                                         }
 141
 142                                         a->acl_dn_pat = ch_strdup( "*" );
 143                                         continue;
 144                                 }
 145
 146                                 split( argv[i], '=', &left, &right );
 147
 148                                 if ( strcasecmp( left, "dn" ) == 0 ) {
 149                                         if( a->acl_dn_pat != NULL ) {
 150                                                 fprintf( stderr,
 151                                                         "%s: line %d: dn pattern"
 152                                                         " already specified in to clause.\n",
 153                                                         fname, lineno );
 154                                                 acl_usage();
 155                                         }
 156
 157                                         if ( right == NULL ) {
 158                                                 fprintf( stderr,
 159         "%s: line %d: missing \"=\" in \"%s\" in to clause\n",
 160                                                     fname, lineno, left );
 161                                                 acl_usage();
 162                                         }
 163
 164                                         if( *right == '\0' ) {
 165                                                 a->acl_dn_pat = ch_strdup("^$");
 166
 167                                         } else if ( strcmp(right, "*") == 0
 168                                                 || strcmp(right, ".*") == 0
 169                                                 || strcmp(right, ".*$") == 0
 170                                                 || strcmp(right, "^.*") == 0
 171                                                 || strcmp(right, "^.*$$") == 0
 172                                                 || strcmp(right, ".*$$") == 0
 173                                                 || strcmp(right, "^.*$$") == 0 )
 174                                         {
 175                                                 a->acl_dn_pat = ch_strdup( "*" );
 176
 177                                         } else {
 178                                                 a->acl_dn_pat = ch_strdup( right );
 179                                         }
 180
 181                                         continue;
 182                                 }
 183
 184                                 if ( right == NULL || *right == '\0' ) {
 185                                         fprintf( stderr,
 186         "%s: line %d: missing \"=\" in (or value after) \"%s\" in to clause\n",
 187                                             fname, lineno, left );
 188                                         acl_usage();
 189                                 }
 190
 191                                 if ( strcasecmp( left, "filter" ) == 0 ) {
 192                                         if ( (a->acl_filter = str2filter(
 193                                             right )) == NULL ) {
 194                                                 fprintf( stderr,
 195                                 "%s: line %d: bad filter \"%s\" in to clause\n",
 196                                                     fname, lineno, right );
 197                                                 acl_usage();
 198                                         }
 199
 200                                 } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
 201                                         char    **alist;
 202
 203                                         alist = str2charray( right, "," );
 204                                         charray_merge( &a->acl_attrs, alist );
 205                                         charray_free( alist );
 206
 207                                 } else {
 208                                         fprintf( stderr,
 209                                                 "%s: line %d: expecting <what> got \"%s\"\n",
 210                                             fname, lineno, left );
 211                                         acl_usage();
 212                                 }
 213                         }
 214
 215                         if ( a->acl_dn_pat != NULL && strcmp(a->acl_dn_pat, "*") == 0) {
 216                                 free( a->acl_dn_pat );
 217                                 a->acl_dn_pat = NULL;
 218                         }
 219
 220                         if( a->acl_dn_pat != NULL ) {
 221                                 int e = regcomp( &a->acl_dn_re, a->acl_dn_pat,
 222                                                  REG_EXTENDED | REG_ICASE );
 223                                 if ( e ) {
 224                                         char buf[512];
 225                                         regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
 226                                         fprintf( stderr,
 227                                 "%s: line %d: regular expression \"%s\" bad because of %s\n",
 228                                                  fname, lineno, right, buf );
 229                                         acl_usage();
 230                                 }
 231                         }
 232
 233                 /* by clause - select who has what access to entries */
 234                 } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 235                         if ( a == NULL ) {
 236                                 fprintf( stderr,
 237                                         "%s: line %d: to clause required before by clause in access line\n",
 238                                     fname, lineno );
 239                                 acl_usage();
 240                         }
 241
 242                         /*
 243                          * by clause consists of <who> and <access>
 244                          */
 245
 246                         b = (Access *) ch_calloc( 1, sizeof(Access) );
 247
 248                         ACL_INVALIDATE( b->a_mask );
 249
 250                         if ( ++i == argc ) {
 251                                 fprintf( stderr,
 252                             "%s: line %d: premature eol: expecting <who>\n",
 253                                     fname, lineno );
 254                                 acl_usage();
 255                         }
 256
 257                         /* get <who> */
 258                         for ( ; i < argc; i++ ) {
 259                                 char *pat;
 260                                 split( argv[i], '=', &left, &right );
 261
 262                                 if ( strcasecmp( argv[i], "*" ) == 0 ) {
 263                                         pat = ch_strdup( "*" );
 264
 265                                 } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
 266                                         pat = ch_strdup( "anonymous" );
 267
 268                                 } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
 269                                         pat = ch_strdup( "self" );
 270
 271                                 } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
 272                                         pat = ch_strdup( "users" );
 273
 274                                 } else if ( strcasecmp( left, "dn" ) == 0 ) {
 275                                         if( right == NULL ) {
 276                                                 /* no '=' */
 277                                                 pat = ch_strdup( "users" );
 278
 279                                         } else if (*right == '\0' ) {
 280                                                 /* dn="" */
 281                                                 pat = ch_strdup( "anonymous" );
 282
 283                                         } else if ( strcmp( right, "*" ) == 0 ) {
 284                                                 /* dn=* */
 285                                                 /* any or users?  any for now */
 286                                                 pat = ch_strdup( "users" );
 287
 288                                         } else if ( strcmp( right, ".+" ) == 0
 289                                                 || strcmp( right, "^.+" ) == 0
 290                                                 || strcmp( right, ".+$" ) == 0
 291                                                 || strcmp( right, "^.+$" ) == 0
 292                                                 || strcmp( right, ".+$$" ) == 0
 293                                                 || strcmp( right, "^.+$$" ) == 0 )
 294                                         {
 295                                                 pat = ch_strdup( "users" );
 296
 297                                         } else if ( strcmp( right, ".*" ) == 0
 298                                                 || strcmp( right, "^.*" ) == 0
 299                                                 || strcmp( right, ".*$" ) == 0
 300                                                 || strcmp( right, "^.*$" ) == 0
 301                                                 || strcmp( right, ".*$$" ) == 0
 302                                                 || strcmp( right, "^.*$$" ) == 0 )
 303                                         {
 304                                                 pat = ch_strdup( "*" );
 305
 306                                         } else {
 307                                                 regtest(fname, lineno, right);
 308                                                 pat = ch_strdup( right );
 309                                         }
 310
 311                                 } else {
 312                                         pat = NULL;
 313                                 }
 314
 315                                 if( pat != NULL ) {
 316                                         if( b->a_dn_pat != NULL ) {
 317                                                 fprintf( stderr,
 318                                                     "%s: line %d: dn pattern already specified.\n",
 319                                                     fname, lineno );
 320                                                 acl_usage();
 321                                         }
 322
 323                                         b->a_dn_pat = pat;
 324                                         continue;
 325                                 }
 326
 327                                 if ( strcasecmp( left, "dnattr" ) == 0 ) {
 328                                         if( b->a_dn_at != NULL ) {
 329                                                 fprintf( stderr,
 330                                                         "%s: line %d: dnattr already specified.\n",
 331                                                         fname, lineno );
 332                                                 acl_usage();
 333                                         }
 334
 335 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 336                                         rc = slap_str2ad( right, &b->a_dn_at, &text );
 337
 338                                         if( rc != LDAP_SUCCESS ) {
 339                                                 fprintf( stderr,
 340                                                         "%s: line %d: dnattr \"%s\": %s\n",
 341                                                         fname, lineno, right, text );
 342                                                 acl_usage();
 343                                         }
 344
 345
 346                                         if( b->a_dn_at->ad_type->sat_syntax
 347                                                 != ad_distinguishedName->ad_type->sat_syntax )
 348                                         {
 349                                                 fprintf( stderr,
 350                                                         "%s: line %d: dnattr \"%s\": inappropriate syntax: %s\n",
 351                                                         fname, lineno, right,
 352                                                         b->a_dn_at->ad_type->sat_syntax_oid );
 353                                                 acl_usage();
 354                                         }
 355
 356 #else
 357                                         b->a_dn_at = ch_strdup( right );
 358 #endif
 359                                         continue;
 360                                 }
 361
 362                                 if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
 363                                         char *name = NULL;
 364                                         char *value = NULL;
 365
 366                                         if( b->a_group_pat != NULL ) {
 367                                                 fprintf( stderr,
 368                                                         "%s: line %d: group pattern already specified.\n",
 369                                                         fname, lineno );
 370                                                 acl_usage();
 371                                         }
 372
 373                                         /* format of string is "group/objectClassValue/groupAttrName" */
 374                                         if ((value = strchr(left, '/')) != NULL) {
 375                                                 *value++ = '\0';
 376                                                 if (*value
 377                                                         && (name = strchr(value, '/')) != NULL)
 378                                                 {
 379                                                         *name++ = '\0';
 380                                                 }
 381                                         }
 382
 383                                         regtest(fname, lineno, right);
 384                                         b->a_group_pat = ch_strdup( right );
 385
 386                                         if (value && *value) {
 387                                                 b->a_group_oc = ch_strdup(value);
 388                                                 *--value = '/';
 389                                         } else {
 390                                                 b->a_group_oc = ch_strdup("groupOfNames");
 391                                         }
 392
 393                                         if (name && *name) {
 394 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 395                                                 rc = slap_str2ad( right, &b->a_group_at, &text );
 396
 397                                                 if( rc != LDAP_SUCCESS ) {
 398                                                         fprintf( stderr,
 399                                                                 "%s: line %d: group \"%s\": %s\n",
 400                                                                 fname, lineno, right, text );
 401                                                         acl_usage();
 402                                                 }
 403
 404                                                 if( b->a_group_at->ad_type->sat_syntax
 405                                                         != ad_member->ad_type->sat_syntax )
 406                                                 {
 407                                                         fprintf( stderr,
 408                                                                 "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
 409                                                                 fname, lineno, right,
 410                                                                 b->a_group_at->ad_type->sat_syntax_oid );
 411                                                         acl_usage();
 412                                                 }
 413 #else
 414                                                 b->a_group_at = ch_strdup(name);
 415 #endif
 416                                                 *--name = '/';
 417
 418                                         } else {
 419 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 420                                                 b->a_group_at = ad_dup( ad_member );
 421 #else
 422                                                 b->a_group_at = ch_strdup( ad_member );
 423 #endif
 424                                         }
 425
 426 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 427                                         if( b->a_group_at == NULL ) {
 428                                                 fprintf( stderr,
 429                                                         "%s: line %d: group attribute type undefined.\n",
 430                                                         fname, lineno );
 431                                                 acl_usage();
 432                                         }
 433 #endif /* SLAPD_SCHEMA_NOT_COMPAT */
 434                                         continue;
 435                                 }
 436
 437                                 if ( strcasecmp( left, "peername" ) == 0 ) {
 438                                         if( b->a_peername_pat != NULL ) {
 439                                                 fprintf( stderr,
 440                                                         "%s: line %d: peername pattern already specified.\n",
 441                                                         fname, lineno );
 442                                                 acl_usage();
 443                                         }
 444
 445                                         regtest(fname, lineno, right);
 446                                         b->a_peername_pat = ch_strdup( right );
 447                                         continue;
 448                                 }
 449
 450                                 if ( strcasecmp( left, "sockname" ) == 0 ) {
 451                                         if( b->a_sockname_pat != NULL ) {
 452                                                 fprintf( stderr,
 453                                                         "%s: line %d: sockname pattern already specified.\n",
 454                                                         fname, lineno );
 455                                                 acl_usage();
 456                                         }
 457
 458                                         regtest(fname, lineno, right);
 459                                         b->a_sockname_pat = ch_strdup( right );
 460                                         continue;
 461                                 }
 462
 463                                 if ( strcasecmp( left, "domain" ) == 0 ) {
 464                                         if( b->a_domain_pat != NULL ) {
 465                                                 fprintf( stderr,
 466                                                         "%s: line %d: domain pattern already specified.\n",
 467                                                         fname, lineno );
 468                                                 acl_usage();
 469                                         }
 470
 471                                         regtest(fname, lineno, right);
 472                                         b->a_domain_pat = ch_strdup( right );
 473                                         continue;
 474                                 }
 475
 476                                 if ( strcasecmp( left, "sockurl" ) == 0 ) {
 477                                         if( b->a_sockurl_pat != NULL ) {
 478                                                 fprintf( stderr,
 479                                                         "%s: line %d: sockurl pattern already specified.\n",
 480                                                         fname, lineno );
 481                                                 acl_usage();
 482                                         }
 483
 484                                         regtest(fname, lineno, right);
 485                                         b->a_sockurl_pat = ch_strdup( right );
 486                                         continue;
 487                                 }
 488
 489 #ifdef SLAPD_ACI_ENABLED
 490                                 if ( strcasecmp( left, "aci" ) == 0 ) {
 491                                         if( b->a_aci_at != NULL ) {
 492                                                 fprintf( stderr,
 493                                                         "%s: line %d: aci attribute already specified.\n",
 494                                                         fname, lineno );
 495                                                 acl_usage();
 496                                         }
 497
 498 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 499                                         if ( right != NULL && *right != '\0' ) {
 500                                                 rc = slap_str2ad( right, &b->a_aci_at, &text );
 501
 502                                                 if( rc != LDAP_SUCCESS ) {
 503                                                         fprintf( stderr,
 504                                                                 "%s: line %d: aci \"%s\": %s\n",
 505                                                                 fname, lineno, right, text );
 506                                                         acl_usage();
 507                                                 }
 508
 509                                                 if( b->a_aci_at->ad_type->sat_syntax
 510                                                         != ad_aci->ad_type->sat_syntax )
 511                                                 {
 512                                                         fprintf( stderr,
 513                                                                 "%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
 514                                                                 fname, lineno, right,
 515                                                                 b->a_aci_at->ad_type->sat_syntax_oid );
 516                                                         acl_usage();
 517                                                 }
 518                                         } else {
 519                                                 b->a_aci_at = ad_dup( ad_aci );
 520                                         }
 521
 522                                         if( b->a_aci_at == NULL ) {
 523                                                 fprintf( stderr,
 524                                                         "%s: line %d: aci attribute type undefined.\n",
 525                                                         fname, lineno );
 526                                                 acl_usage();
 527                                         }
 528
 529 #else
 530                                         if ( right != NULL && *right != '\0' ) {
 531                                                 b->a_aci_at = ch_strdup( right );
 532                                         } else {
 533                                                 b->a_aci_at = ch_strdup( SLAPD_ACI_DEFAULT_ATTR );
 534                                         }
 535 #endif
 536                                         continue;
 537                                 }
 538 #endif /* SLAPD_ACI_ENABLED */
 539
 540                                 if( right != NULL ) {
 541                                         /* unsplit */
 542                                         right[-1] = '=';
 543                                 }
 544                                 break;
 545                         }
 546
 547                         if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
 548                                 /* out of arguments or plain stop */
 549
 550                                 ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
 551                                 b->a_type = ACL_STOP;
 552
 553                                 access_append( &a->acl_access, b );
 554                                 continue;
 555                         }
 556
 557                         if( strcasecmp( left, "continue" ) == 0 ) {
 558                                 /* plain continue */
 559
 560                                 ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
 561                                 b->a_type = ACL_CONTINUE;
 562
 563                                 access_append( &a->acl_access, b );
 564                                 continue;
 565                         }
 566
 567                         if( strcasecmp( left, "break" ) == 0 ) {
 568                                 /* plain continue */
 569
 570                                 ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
 571                                 b->a_type = ACL_BREAK;
 572
 573                                 access_append( &a->acl_access, b );
 574                                 continue;
 575                         }
 576
 577                         if ( strcasecmp( left, "by" ) == 0 ) {
 578                                 /* we've gone too far */
 579                                 --i;
 580                                 ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
 581                                 b->a_type = ACL_STOP;
 582
 583                                 access_append( &a->acl_access, b );
 584                                 continue;
 585                         }
 586
 587                         /* get <access> */
 588                         if( strncasecmp( left, "self", 4 ) == 0 ) {
 589                                 b->a_dn_self = 1;
 590                                 ACL_PRIV_ASSIGN( b->a_mask, str2accessmask( &left[4] ) );
 591
 592                         } else {
 593                                 ACL_PRIV_ASSIGN( b->a_mask, str2accessmask( left ) );
 594                         }
 595
 596                         if( ACL_IS_INVALID( b->a_mask ) ) {
 597                                 fprintf( stderr,
 598                                         "%s: line %d: expecting <access> got \"%s\"\n",
 599                                         fname, lineno, left );
 600                                 acl_usage();
 601                         }
 602
 603                         b->a_type = ACL_STOP;
 604
 605                         if( ++i == argc ) {
 606                                 /* out of arguments or plain stop */
 607                                 access_append( &a->acl_access, b );
 608                                 continue;
 609                         }
 610
 611                         if( strcasecmp( argv[i], "continue" ) == 0 ) {
 612                                 /* plain continue */
 613                                 b->a_type = ACL_CONTINUE;
 614
 615                         } else if( strcasecmp( argv[i], "break" ) == 0 ) {
 616                                 /* plain continue */
 617                                 b->a_type = ACL_BREAK;
 618
 619                         } else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
 620                                 /* gone to far */
 621                                 i--;
 622                         }
 623
 624                         access_append( &a->acl_access, b );
 625
 626                 } else {
 627                         fprintf( stderr,
 628                     "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
 629                             fname, lineno, argv[i] );
 630                         acl_usage();
 631                 }
 632         }
 633
 634         /* if we have no real access clause, complain and do nothing */
 635         if ( a == NULL ) {
 636                         fprintf( stderr,
 637                                 "%s: line %d: warning: no access clause(s) specified in access line\n",
 638                             fname, lineno );
 639
 640         } else {
 641 #ifdef LDAP_DEBUG
 642                 if (ldap_debug & LDAP_DEBUG_ACL)
 643                         print_acl(be, a);
 644 #endif
 645
 646                 if ( a->acl_access == NULL ) {
 647                         fprintf( stderr,
 648                         "%s: line %d: warning: no by clause(s) specified in access line\n",
 649                             fname, lineno );
 650                 }
 651
 652                 if ( be != NULL ) {
 653                         acl_append( &be->be_acl, a );
 654                 } else {
 655                         acl_append( &global_acl, a );
 656                 }
 657         }
 658 }
 659
 660 char *
 661 accessmask2str( slap_access_mask_t mask, char *buf )
 662 {
 663         int none=1;
 664
 665         assert( buf != NULL );
 666
 667         if ( ACL_IS_INVALID( mask ) ) {
 668                 return "invalid";
 669         }
 670
 671         buf[0] = '\0';
 672
 673         if ( ACL_IS_LEVEL( mask ) ) {
 674                 if ( ACL_LVL_IS_NONE(mask) ) {
 675                         strcat( buf, "none" );
 676
 677                 } else if ( ACL_LVL_IS_AUTH(mask) ) {
 678                         strcat( buf, "auth" );
 679
 680                 } else if ( ACL_LVL_IS_COMPARE(mask) ) {
 681                         strcat( buf, "compare" );
 682
 683                 } else if ( ACL_LVL_IS_SEARCH(mask) ) {
 684                         strcat( buf, "search" );
 685
 686                 } else if ( ACL_LVL_IS_READ(mask) ) {
 687                         strcat( buf, "read" );
 688
 689                 } else if ( ACL_LVL_IS_WRITE(mask) ) {
 690                         strcat( buf, "write" );
 691                 } else {
 692                         strcat( buf, "unknown" );
 693                 }
 694
 695                 strcat(buf, " (");
 696         }
 697
 698         if( ACL_IS_ADDITIVE( mask ) ) {
 699                 strcat( buf, "+" );
 700
 701         } else if( ACL_IS_SUBTRACTIVE( mask ) ) {
 702                 strcat( buf, "-" );
 703
 704         } else {
 705                 strcat( buf, "=" );
 706         }
 707
 708         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
 709                 none = 0;
 710                 strcat( buf, "w" );
 711         }
 712
 713         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
 714                 none = 0;
 715                 strcat( buf, "r" );
 716         }
 717
 718         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
 719                 none = 0;
 720                 strcat( buf, "s" );
 721         }
 722
 723         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
 724                 none = 0;
 725                 strcat( buf, "c" );
 726         }
 727
 728         if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
 729                 none = 0;
 730                 strcat( buf, "x" );
 731         }
 732
 733         if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
 734                 none = 0;
 735                 strcat( buf, "n" );
 736         }
 737
 738         if ( none ) {
 739                 strcat( buf, "0" );
 740         }
 741
 742         if ( ACL_IS_LEVEL( mask ) ) {
 743                 strcat(buf, ")");
 744         }
 745         return buf;
 746 }
 747
 748 slap_access_mask_t
 749 str2accessmask( const char *str )
 750 {
 751         slap_access_mask_t      mask;
 752
 753         if( !isalpha(str[0]) ) {
 754                 int i;
 755
 756                 if ( str[0] == '=' ) {
 757                         ACL_INIT(mask);
 758
 759                 } else if( str[0] == '+' ) {
 760                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
 761
 762                 } else if( str[0] == '-' ) {
 763                         ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
 764
 765                 } else {
 766                         ACL_INVALIDATE(mask);
 767                         return mask;
 768                 }
 769
 770                 for( i=1; str[i] != '\0'; i++ ) {
 771                         if( TOLOWER(str[i]) == 'w' ) {
 772                                 ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
 773
 774                         } else if( TOLOWER(str[i]) == 'r' ) {
 775                                 ACL_PRIV_SET(mask, ACL_PRIV_READ);
 776
 777                         } else if( TOLOWER(str[i]) == 's' ) {
 778                                 ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
 779
 780                         } else if( TOLOWER(str[i]) == 'c' ) {
 781                                 ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
 782
 783                         } else if( TOLOWER(str[i]) == 'x' ) {
 784                                 ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
 785
 786                         } else if( str[i] != '0' ) {
 787                                 ACL_INVALIDATE(mask);
 788                                 return mask;
 789                         }
 790                 }
 791
 792                 return mask;
 793         }
 794
 795         if ( strcasecmp( str, "none" ) == 0 ) {
 796                 ACL_LVL_ASSIGN_NONE(mask);
 797
 798         } else if ( strcasecmp( str, "auth" ) == 0 ) {
 799                 ACL_LVL_ASSIGN_AUTH(mask);
 800
 801         } else if ( strcasecmp( str, "compare" ) == 0 ) {
 802                 ACL_LVL_ASSIGN_COMPARE(mask);
 803
 804         } else if ( strcasecmp( str, "search" ) == 0 ) {
 805                 ACL_LVL_ASSIGN_SEARCH(mask);
 806
 807         } else if ( strcasecmp( str, "read" ) == 0 ) {
 808                 ACL_LVL_ASSIGN_READ(mask);
 809
 810         } else if ( strcasecmp( str, "write" ) == 0 ) {
 811                 ACL_LVL_ASSIGN_WRITE(mask);
 812
 813         } else {
 814                 ACL_INVALIDATE( mask );
 815         }
 816
 817         return mask;
 818 }
 819
 820 static void
 821 acl_usage( void )
 822 {
 823         fprintf( stderr, "\n"
 824                 "<access clause> ::= access to <what> "
 825                                 "[ by <who> <access> <control> ]+ \n"
 826                 "<what> ::= * | [dn=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
 827                 "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
 828                 "<attr> ::= <attrname> | entry | children\n"
 829                 "<who> ::= [ * | anonymous | users | self | dn=<regex> ]\n"
 830                         "\t[dnattr=<attrname>]\n"
 831                         "\t[group[/<objectclass>[/<attrname>]]=<regex>]\n"
 832                         "\t[peername=<regex>] [sockname=<regex>]\n"
 833                         "\t[domain=<regex>] [sockurl=<regex>]\n"
 834 #ifdef SLAPD_ACI_ENABLED
 835                         "\t[aci=<attrname>]\n"
 836 #endif
 837                 "<access> ::= [self]{<level>|<priv>}\n"
 838                 "<level> ::= none | auth | compare | search | read | write\n"
 839                 "<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
 840                 "<control> ::= [ stop | continue | break ]\n"
 841                 );
 842         exit( EXIT_FAILURE );
 843 }
 844
 845 static void
 846 split(
 847     char        *line,
 848     int         splitchar,
 849     char        **left,
 850     char        **right
 851 )
 852 {
 853         *left = line;
 854         if ( (*right = strchr( line, splitchar )) != NULL ) {
 855                 *((*right)++) = '\0';
 856         }
 857 }
 858
 859 static void
 860 access_append( Access **l, Access *a )
 861 {
 862         for ( ; *l != NULL; l = &(*l)->a_next )
 863                 ;       /* NULL */
 864
 865         *l = a;
 866 }
 867
 868 void
 869 acl_append( AccessControl **l, AccessControl *a )
 870 {
 871         for ( ; *l != NULL; l = &(*l)->acl_next )
 872                 ;       /* NULL */
 873
 874         *l = a;
 875 }
 876
 877 char *
 878 access2str( slap_access_t access )
 879 {
 880         if ( access == ACL_NONE ) {
 881                 return "none";
 882
 883         } else if ( access == ACL_AUTH ) {
 884                 return "auth";
 885
 886         } else if ( access == ACL_COMPARE ) {
 887                 return "compare";
 888
 889         } else if ( access == ACL_SEARCH ) {
 890                 return "search";
 891
 892         } else if ( access == ACL_READ ) {
 893                 return "read";
 894
 895         } else if ( access == ACL_WRITE ) {
 896                 return "write";
 897         }
 898
 899         return "unknown";
 900 }
 901
 902 slap_access_t
 903 str2access( const char *str )
 904 {
 905         if ( strcasecmp( str, "none" ) == 0 ) {
 906                 return ACL_NONE;
 907
 908         } else if ( strcasecmp( str, "auth" ) == 0 ) {
 909                 return ACL_AUTH;
 910
 911         } else if ( strcasecmp( str, "compare" ) == 0 ) {
 912                 return ACL_COMPARE;
 913
 914         } else if ( strcasecmp( str, "search" ) == 0 ) {
 915                 return ACL_SEARCH;
 916
 917         } else if ( strcasecmp( str, "read" ) == 0 ) {
 918                 return ACL_READ;
 919
 920         } else if ( strcasecmp( str, "write" ) == 0 ) {
 921                 return ACL_WRITE;
 922         }
 923
 924         return( ACL_INVALID_ACCESS );
 925 }
 926
 927 #ifdef LDAP_DEBUG
 928
 929 static void
 930 print_access( Access *b )
 931 {
 932         char maskbuf[ACCESSMASK_MAXLEN];
 933
 934         fprintf( stderr, "\tby" );
 935
 936         if ( b->a_dn_pat != NULL ) {
 937                 if( strcmp(b->a_dn_pat, "*") == 0
 938                         || strcmp(b->a_dn_pat, "users") == 0
 939                         || strcmp(b->a_dn_pat, "anonymous") == 0
 940                         || strcmp(b->a_dn_pat, "self") == 0 )
 941                 {
 942                         fprintf( stderr, " %s", b->a_dn_pat );
 943
 944                 } else {
 945                         fprintf( stderr, " dn=%s", b->a_dn_pat );
 946                 }
 947         }
 948
 949         if ( b->a_dn_at != NULL ) {
 950 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 951                 fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname->bv_val );
 952 #else
 953                 fprintf( stderr, " dnattr=%s", b->a_dn_at );
 954 #endif
 955         }
 956
 957         if ( b->a_group_pat != NULL ) {
 958                 fprintf( stderr, " group: %s", b->a_group_pat );
 959
 960                 if ( b->a_group_oc ) {
 961                         fprintf( stderr, " objectClass: %s", b->a_group_oc );
 962
 963                         if ( b->a_group_at ) {
 964 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 965                                 fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname->bv_val );
 966 #else
 967                                 fprintf( stderr, " attributeType: %s", b->a_group_at );
 968 #endif
 969                         }
 970                 }
 971     }
 972
 973         if ( b->a_peername_pat != NULL ) {
 974                 fprintf( stderr, " peername=%s", b->a_peername_pat );
 975         }
 976
 977         if ( b->a_sockname_pat != NULL ) {
 978                 fprintf( stderr, " sockname=%s", b->a_sockname_pat );
 979         }
 980
 981         if ( b->a_domain_pat != NULL ) {
 982                 fprintf( stderr, " domain=%s", b->a_domain_pat );
 983         }
 984
 985         if ( b->a_sockurl_pat != NULL ) {
 986                 fprintf( stderr, " sockurl=%s", b->a_sockurl_pat );
 987         }
 988
 989 #ifdef SLAPD_ACI_ENABLED
 990         if ( b->a_aci_at != NULL ) {
 991 #ifdef SLAPD_SCHEMA_NOT_COMPAT
 992                 fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname->bv_val );
 993 #else
 994                 fprintf( stderr, " aci=%s", b->a_aci_at );
 995 #endif
 996         }
 997 #endif
 998
 999         fprintf( stderr, " %s%s",
1000                 b->a_dn_self ? "self" : "",
1001                 accessmask2str( b->a_mask, maskbuf ) );
1002
1003         if( b->a_type == ACL_BREAK ) {
1004                 fprintf( stderr, " break" );
1005
1006         } else if( b->a_type == ACL_CONTINUE ) {
1007                 fprintf( stderr, " continue" );
1008
1009         } else if( b->a_type != ACL_STOP ) {
1010                 fprintf( stderr, " unknown-control" );
1011         }
1012
1013         fprintf( stderr, "\n" );
1014 }
1015
1016
1017 static void
1018 print_acl( Backend *be, AccessControl *a )
1019 {
1020         int             to = 0;
1021         Access  *b;
1022
1023         fprintf( stderr, "%s ACL: access to",
1024                 be == NULL ? "Global" : "Backend" );
1025
1026         if ( a->acl_dn_pat != NULL ) {
1027                 to++;
1028                 fprintf( stderr, " dn=%s\n",
1029                         a->acl_dn_pat );
1030         }
1031
1032         if ( a->acl_filter != NULL ) {
1033                 to++;
1034                 fprintf( stderr, " filter=" );
1035                 filter_print( a->acl_filter );
1036                 fprintf( stderr, "\n" );
1037         }
1038
1039         if ( a->acl_attrs != NULL ) {
1040                 int     i, first = 1;
1041                 to++;
1042
1043                 fprintf( stderr, " attrs=" );
1044                 for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
1045                         if ( ! first ) {
1046                                 fprintf( stderr, "," );
1047                         }
1048                         fprintf( stderr, a->acl_attrs[i] );
1049                         first = 0;
1050                 }
1051                 fprintf(  stderr, "\n" );
1052         }
1053
1054         if( !to ) {
1055                 fprintf( stderr, " *\n" );
1056         }
1057
1058         for ( b = a->acl_access; b != NULL; b = b->a_next ) {
1059                 print_access( b );
1060         }
1061
1062         fprintf( stderr, "\n" );
1063 }
1064
1065 #endif /* LDAP_DEBUG */